20548437440

素因数分解:

$2^6\times 5^1\times {\mathrm{127}}^1\times {\mathrm{421}}^1\times {\mathrm{1201}}^1$

素因数の和:1766

約数の個数: 112

約数和(自身を含む): 49474550784

約数和(自身を除く): 28926113344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 127, 160, 254, 320, 421, 508, 635, 842, 1016, 1201, 1270, 1684, 2032, 2105, 2402, 2540, 3368, 4064, 4210, 4804, 5080, 6005, 6736, 8128, 8420, 9608, 10160, 12010, 13472, 16840, 19216, 20320, 24020, 26944, 33680, 38432, 40640, 48040, 53467, 67360, 76864, 96080, 106934, 134720, 152527, 192160, 213868, 267335, 305054, 384320, 427736, 505621, 534670, 610108, 762635, 855472, 1011242, 1069340, 1220216, 1525270, 1710944, 2022484, 2138680, 2440432, 2528105, 3050540, 3421888, 4044968, 4277360, 4880864, 5056210, 6101080, 8089936, 8554720, 9761728, 10112420, 12202160, 16179872, 17109440, 20224840, 24404320, 32359744, 40449680, 48808640, 64213867, 80899360, 128427734, 161798720, 256855468, 321069335, 513710936, 642138670, 1027421872, 1284277340, 2054843744, 2568554680, 4109687488, 5137109360, 10274218720, 20548437440]

約数ペア:

[(1, 20548437440), (2, 10274218720), (4, 5137109360), (5, 4109687488), (8, 2568554680), (10, 2054843744), (16, 1284277340), (20, 1027421872), (32, 642138670), (40, 513710936), (64, 321069335), (80, 256855468), (127, 161798720), (160, 128427734), (254, 80899360), (320, 64213867), (421, 48808640), (508, 40449680), (635, 32359744), (842, 24404320), (1016, 20224840), (1201, 17109440), (1270, 16179872), (1684, 12202160), (2032, 10112420), (2105, 9761728), (2402, 8554720), (2540, 8089936), (3368, 6101080), (4064, 5056210), (4210, 4880864), (4804, 4277360), (5080, 4044968), (6005, 3421888), (6736, 3050540), (8128, 2528105), (8420, 2440432), (9608, 2138680), (10160, 2022484), (12010, 1710944), (13472, 1525270), (16840, 1220216), (19216, 1069340), (20320, 1011242), (24020, 855472), (26944, 762635), (33680, 610108), (38432, 534670), (40640, 505621), (48040, 427736), (53467, 384320), (67360, 305054), (76864, 267335), (96080, 213868), (106934, 192160), (134720, 152527)]