19263720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1$

素因数の和:128

約数の個数: 256

約数和(自身を含む): 74649600

約数和(自身を除く): 55385880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 17, 19, 20, 21, 24, 28, 30, 34, 35, 38, 40, 42, 51, 56, 57, 60, 68, 70, 71, 76, 84, 85, 95, 102, 105, 114, 119, 120, 133, 136, 140, 142, 152, 168, 170, 190, 204, 210, 213, 228, 238, 255, 266, 280, 284, 285, 323, 340, 355, 357, 380, 399, 408, 420, 426, 456, 476, 497, 510, 532, 568, 570, 595, 646, 665, 680, 710, 714, 760, 798, 840, 852, 952, 969, 994, 1020, 1064, 1065, 1140, 1190, 1207, 1292, 1330, 1349, 1420, 1428, 1491, 1596, 1615, 1704, 1785, 1938, 1988, 1995, 2040, 2130, 2261, 2280, 2380, 2414, 2485, 2584, 2660, 2698, 2840, 2856, 2982, 3192, 3230, 3570, 3621, 3876, 3976, 3990, 4047, 4260, 4522, 4760, 4828, 4845, 4970, 5320, 5396, 5964, 6035, 6460, 6745, 6783, 7140, 7242, 7455, 7752, 7980, 8094, 8449, 8520, 9044, 9443, 9656, 9690, 9940, 10792, 11305, 11928, 12070, 12920, 13490, 13566, 14280, 14484, 14910, 15960, 16188, 16898, 18088, 18105, 18886, 19380, 19880, 20235, 22610, 22933, 24140, 25347, 26980, 27132, 28329, 28968, 29820, 32376, 33796, 33915, 36210, 37772, 38760, 40470, 42245, 45220, 45866, 47215, 48280, 50694, 53960, 54264, 56658, 59640, 67592, 67830, 68799, 72420, 75544, 80940, 84490, 90440, 91732, 94430, 101388, 113316, 114665, 126735, 135660, 137598, 141645, 144840, 160531, 161880, 168980, 183464, 188860, 202776, 226632, 229330, 253470, 271320, 275196, 283290, 321062, 337960, 343995, 377720, 458660, 481593, 506940, 550392, 566580, 642124, 687990, 802655, 917320, 963186, 1013880, 1133160, 1284248, 1375980, 1605310, 1926372, 2407965, 2751960, 3210620, 3852744, 4815930, 6421240, 9631860, 19263720]

約数ペア:

[(1, 19263720), (2, 9631860), (3, 6421240), (4, 4815930), (5, 3852744), (6, 3210620), (7, 2751960), (8, 2407965), (10, 1926372), (12, 1605310), (14, 1375980), (15, 1284248), (17, 1133160), (19, 1013880), (20, 963186), (21, 917320), (24, 802655), (28, 687990), (30, 642124), (34, 566580), (35, 550392), (38, 506940), (40, 481593), (42, 458660), (51, 377720), (56, 343995), (57, 337960), (60, 321062), (68, 283290), (70, 275196), (71, 271320), (76, 253470), (84, 229330), (85, 226632), (95, 202776), (102, 188860), (105, 183464), (114, 168980), (119, 161880), (120, 160531), (133, 144840), (136, 141645), (140, 137598), (142, 135660), (152, 126735), (168, 114665), (170, 113316), (190, 101388), (204, 94430), (210, 91732), (213, 90440), (228, 84490), (238, 80940), (255, 75544), (266, 72420), (280, 68799), (284, 67830), (285, 67592), (323, 59640), (340, 56658), (355, 54264), (357, 53960), (380, 50694), (399, 48280), (408, 47215), (420, 45866), (426, 45220), (456, 42245), (476, 40470), (497, 38760), (510, 37772), (532, 36210), (568, 33915), (570, 33796), (595, 32376), (646, 29820), (665, 28968), (680, 28329), (710, 27132), (714, 26980), (760, 25347), (798, 24140), (840, 22933), (852, 22610), (952, 20235), (969, 19880), (994, 19380), (1020, 18886), (1064, 18105), (1065, 18088), (1140, 16898), (1190, 16188), (1207, 15960), (1292, 14910), (1330, 14484), (1349, 14280), (1420, 13566), (1428, 13490), (1491, 12920), (1596, 12070), (1615, 11928), (1704, 11305), (1785, 10792), (1938, 9940), (1988, 9690), (1995, 9656), (2040, 9443), (2130, 9044), (2261, 8520), (2280, 8449), (2380, 8094), (2414, 7980), (2485, 7752), (2584, 7455), (2660, 7242), (2698, 7140), (2840, 6783), (2856, 6745), (2982, 6460), (3192, 6035), (3230, 5964), (3570, 5396), (3621, 5320), (3876, 4970), (3976, 4845), (3990, 4828), (4047, 4760), (4260, 4522)]