20685492792

素因数分解:

$2^3\times 3^2\times {\mathrm{127}}^1\times {\mathrm{997}}^1\times {\mathrm{2269}}^1$

素因数の和:3405

約数の個数: 96

約数和(自身を含む): 56545881600

約数和(自身を除く): 35860388808

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 127, 254, 381, 508, 762, 997, 1016, 1143, 1524, 1994, 2269, 2286, 2991, 3048, 3988, 4538, 4572, 5982, 6807, 7976, 8973, 9076, 9144, 11964, 13614, 17946, 18152, 20421, 23928, 27228, 35892, 40842, 54456, 71784, 81684, 126619, 163368, 253238, 288163, 379857, 506476, 576326, 759714, 864489, 1012952, 1139571, 1152652, 1519428, 1728978, 2262193, 2279142, 2305304, 2593467, 3038856, 3457956, 4524386, 4558284, 5186934, 6786579, 6915912, 9048772, 9116568, 10373868, 13573158, 18097544, 20359737, 20747736, 27146316, 40719474, 54292632, 81438948, 162877896, 287298511, 574597022, 861895533, 1149194044, 1723791066, 2298388088, 2585686599, 3447582132, 5171373198, 6895164264, 10342746396, 20685492792]

約数ペア:

[(1, 20685492792), (2, 10342746396), (3, 6895164264), (4, 5171373198), (6, 3447582132), (8, 2585686599), (9, 2298388088), (12, 1723791066), (18, 1149194044), (24, 861895533), (36, 574597022), (72, 287298511), (127, 162877896), (254, 81438948), (381, 54292632), (508, 40719474), (762, 27146316), (997, 20747736), (1016, 20359737), (1143, 18097544), (1524, 13573158), (1994, 10373868), (2269, 9116568), (2286, 9048772), (2991, 6915912), (3048, 6786579), (3988, 5186934), (4538, 4558284), (4572, 4524386), (5982, 3457956), (6807, 3038856), (7976, 2593467), (8973, 2305304), (9076, 2279142), (9144, 2262193), (11964, 1728978), (13614, 1519428), (17946, 1152652), (18152, 1139571), (20421, 1012952), (23928, 864489), (27228, 759714), (35892, 576326), (40842, 506476), (54456, 379857), (71784, 288163), (81684, 253238), (126619, 163368)]