19708920

素因数分解:

$2^3\times 3^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1$

素因数の和:120

約数の個数: 320

約数和(自身を含む): 83635200

約数和(自身を除く): 63926280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 24, 27, 28, 30, 33, 35, 36, 40, 42, 44, 45, 54, 55, 56, 60, 63, 66, 70, 72, 77, 79, 81, 84, 88, 90, 99, 105, 108, 110, 120, 126, 132, 135, 140, 154, 158, 162, 165, 168, 180, 189, 198, 210, 216, 220, 231, 237, 252, 264, 270, 280, 297, 308, 315, 316, 324, 330, 360, 378, 385, 395, 396, 405, 420, 440, 462, 474, 495, 504, 540, 553, 567, 594, 616, 630, 632, 648, 660, 693, 711, 756, 770, 790, 792, 810, 840, 869, 891, 924, 945, 948, 990, 1080, 1106, 1134, 1155, 1185, 1188, 1260, 1320, 1386, 1422, 1485, 1512, 1540, 1580, 1620, 1659, 1738, 1782, 1848, 1890, 1896, 1980, 2079, 2133, 2212, 2268, 2310, 2370, 2376, 2520, 2607, 2765, 2772, 2835, 2844, 2970, 3080, 3160, 3240, 3318, 3465, 3476, 3555, 3564, 3780, 3960, 4158, 4266, 4345, 4424, 4455, 4536, 4620, 4740, 4977, 5214, 5530, 5544, 5670, 5688, 5940, 6083, 6237, 6399, 6636, 6930, 6952, 7110, 7128, 7560, 7821, 8295, 8316, 8532, 8690, 8910, 9240, 9480, 9954, 10395, 10428, 10665, 11060, 11340, 11880, 12166, 12474, 12798, 13035, 13272, 13860, 14220, 14931, 15642, 16590, 16632, 17064, 17380, 17820, 18249, 19908, 20790, 20856, 21330, 22120, 22680, 23463, 24332, 24885, 24948, 25596, 26070, 27720, 28440, 29862, 30415, 31185, 31284, 31995, 33180, 34760, 35640, 36498, 39105, 39816, 41580, 42660, 44793, 46926, 48664, 49770, 49896, 51192, 52140, 54747, 59724, 60830, 62370, 62568, 63990, 66360, 70389, 72996, 74655, 78210, 83160, 85320, 89586, 91245, 93852, 99540, 104280, 109494, 117315, 119448, 121660, 124740, 127980, 140778, 145992, 149310, 156420, 164241, 179172, 182490, 187704, 199080, 218988, 223965, 234630, 243320, 249480, 255960, 273735, 281556, 298620, 312840, 328482, 351945, 358344, 364980, 437976, 447930, 469260, 492723, 547470, 563112, 597240, 656964, 703890, 729960, 821205, 895860, 938520, 985446, 1094940, 1313928, 1407780, 1642410, 1791720, 1970892, 2189880, 2463615, 2815560, 3284820, 3941784, 4927230, 6569640, 9854460, 19708920]

約数ペア:

[(1, 19708920), (2, 9854460), (3, 6569640), (4, 4927230), (5, 3941784), (6, 3284820), (7, 2815560), (8, 2463615), (9, 2189880), (10, 1970892), (11, 1791720), (12, 1642410), (14, 1407780), (15, 1313928), (18, 1094940), (20, 985446), (21, 938520), (22, 895860), (24, 821205), (27, 729960), (28, 703890), (30, 656964), (33, 597240), (35, 563112), (36, 547470), (40, 492723), (42, 469260), (44, 447930), (45, 437976), (54, 364980), (55, 358344), (56, 351945), (60, 328482), (63, 312840), (66, 298620), (70, 281556), (72, 273735), (77, 255960), (79, 249480), (81, 243320), (84, 234630), (88, 223965), (90, 218988), (99, 199080), (105, 187704), (108, 182490), (110, 179172), (120, 164241), (126, 156420), (132, 149310), (135, 145992), (140, 140778), (154, 127980), (158, 124740), (162, 121660), (165, 119448), (168, 117315), (180, 109494), (189, 104280), (198, 99540), (210, 93852), (216, 91245), (220, 89586), (231, 85320), (237, 83160), (252, 78210), (264, 74655), (270, 72996), (280, 70389), (297, 66360), (308, 63990), (315, 62568), (316, 62370), (324, 60830), (330, 59724), (360, 54747), (378, 52140), (385, 51192), (395, 49896), (396, 49770), (405, 48664), (420, 46926), (440, 44793), (462, 42660), (474, 41580), (495, 39816), (504, 39105), (540, 36498), (553, 35640), (567, 34760), (594, 33180), (616, 31995), (630, 31284), (632, 31185), (648, 30415), (660, 29862), (693, 28440), (711, 27720), (756, 26070), (770, 25596), (790, 24948), (792, 24885), (810, 24332), (840, 23463), (869, 22680), (891, 22120), (924, 21330), (945, 20856), (948, 20790), (990, 19908), (1080, 18249), (1106, 17820), (1134, 17380), (1155, 17064), (1185, 16632), (1188, 16590), (1260, 15642), (1320, 14931), (1386, 14220), (1422, 13860), (1485, 13272), (1512, 13035), (1540, 12798), (1580, 12474), (1620, 12166), (1659, 11880), (1738, 11340), (1782, 11060), (1848, 10665), (1890, 10428), (1896, 10395), (1980, 9954), (2079, 9480), (2133, 9240), (2212, 8910), (2268, 8690), (2310, 8532), (2370, 8316), (2376, 8295), (2520, 7821), (2607, 7560), (2765, 7128), (2772, 7110), (2835, 6952), (2844, 6930), (2970, 6636), (3080, 6399), (3160, 6237), (3240, 6083), (3318, 5940), (3465, 5688), (3476, 5670), (3555, 5544), (3564, 5530), (3780, 5214), (3960, 4977), (4158, 4740), (4266, 4620), (4345, 4536), (4424, 4455)]