20429640

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{67}}^1$

素因数の和:113

約数の個数: 288

約数和(自身を含む): 84651840

約数和(自身を除く): 64222200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 24, 28, 30, 33, 35, 36, 40, 42, 44, 45, 55, 56, 60, 63, 66, 67, 70, 72, 77, 84, 88, 90, 99, 105, 110, 120, 121, 126, 132, 134, 140, 154, 165, 168, 180, 198, 201, 210, 220, 231, 242, 252, 264, 268, 280, 308, 315, 330, 335, 360, 363, 385, 396, 402, 420, 440, 462, 469, 484, 495, 504, 536, 603, 605, 616, 630, 660, 670, 693, 726, 737, 770, 792, 804, 840, 847, 924, 938, 968, 990, 1005, 1089, 1155, 1206, 1210, 1260, 1320, 1340, 1386, 1407, 1452, 1474, 1540, 1608, 1694, 1815, 1848, 1876, 1980, 2010, 2178, 2211, 2310, 2345, 2412, 2420, 2520, 2541, 2680, 2772, 2814, 2904, 2948, 3015, 3080, 3388, 3465, 3630, 3685, 3752, 3960, 4020, 4221, 4235, 4356, 4422, 4620, 4690, 4824, 4840, 5082, 5159, 5445, 5544, 5628, 5896, 6030, 6633, 6776, 6930, 7035, 7260, 7370, 7623, 8040, 8107, 8442, 8470, 8712, 8844, 9240, 9380, 10164, 10318, 10890, 11055, 11256, 12060, 12705, 13266, 13860, 14070, 14520, 14740, 15246, 15477, 16214, 16884, 16940, 17688, 18760, 20328, 20636, 21105, 21780, 22110, 24120, 24321, 25410, 25795, 26532, 27720, 28140, 29480, 30492, 30954, 32428, 33165, 33768, 33880, 38115, 40535, 41272, 42210, 43560, 44220, 46431, 48642, 50820, 51590, 53064, 56280, 56749, 60984, 61908, 64856, 66330, 72963, 76230, 77385, 81070, 84420, 88440, 92862, 97284, 101640, 103180, 113498, 121605, 123816, 132660, 145926, 152460, 154770, 162140, 168840, 170247, 185724, 194568, 206360, 226996, 232155, 243210, 265320, 283745, 291852, 304920, 309540, 324280, 340494, 364815, 371448, 453992, 464310, 486420, 510741, 567490, 583704, 619080, 680988, 729630, 851235, 928620, 972840, 1021482, 1134980, 1361976, 1459260, 1702470, 1857240, 2042964, 2269960, 2553705, 2918520, 3404940, 4085928, 5107410, 6809880, 10214820, 20429640]

約数ペア:

[(1, 20429640), (2, 10214820), (3, 6809880), (4, 5107410), (5, 4085928), (6, 3404940), (7, 2918520), (8, 2553705), (9, 2269960), (10, 2042964), (11, 1857240), (12, 1702470), (14, 1459260), (15, 1361976), (18, 1134980), (20, 1021482), (21, 972840), (22, 928620), (24, 851235), (28, 729630), (30, 680988), (33, 619080), (35, 583704), (36, 567490), (40, 510741), (42, 486420), (44, 464310), (45, 453992), (55, 371448), (56, 364815), (60, 340494), (63, 324280), (66, 309540), (67, 304920), (70, 291852), (72, 283745), (77, 265320), (84, 243210), (88, 232155), (90, 226996), (99, 206360), (105, 194568), (110, 185724), (120, 170247), (121, 168840), (126, 162140), (132, 154770), (134, 152460), (140, 145926), (154, 132660), (165, 123816), (168, 121605), (180, 113498), (198, 103180), (201, 101640), (210, 97284), (220, 92862), (231, 88440), (242, 84420), (252, 81070), (264, 77385), (268, 76230), (280, 72963), (308, 66330), (315, 64856), (330, 61908), (335, 60984), (360, 56749), (363, 56280), (385, 53064), (396, 51590), (402, 50820), (420, 48642), (440, 46431), (462, 44220), (469, 43560), (484, 42210), (495, 41272), (504, 40535), (536, 38115), (603, 33880), (605, 33768), (616, 33165), (630, 32428), (660, 30954), (670, 30492), (693, 29480), (726, 28140), (737, 27720), (770, 26532), (792, 25795), (804, 25410), (840, 24321), (847, 24120), (924, 22110), (938, 21780), (968, 21105), (990, 20636), (1005, 20328), (1089, 18760), (1155, 17688), (1206, 16940), (1210, 16884), (1260, 16214), (1320, 15477), (1340, 15246), (1386, 14740), (1407, 14520), (1452, 14070), (1474, 13860), (1540, 13266), (1608, 12705), (1694, 12060), (1815, 11256), (1848, 11055), (1876, 10890), (1980, 10318), (2010, 10164), (2178, 9380), (2211, 9240), (2310, 8844), (2345, 8712), (2412, 8470), (2420, 8442), (2520, 8107), (2541, 8040), (2680, 7623), (2772, 7370), (2814, 7260), (2904, 7035), (2948, 6930), (3015, 6776), (3080, 6633), (3388, 6030), (3465, 5896), (3630, 5628), (3685, 5544), (3752, 5445), (3960, 5159), (4020, 5082), (4221, 4840), (4235, 4824), (4356, 4690), (4422, 4620)]