20673780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{211}}^1$

素因数の和:317

約数の個数: 96

約数和(自身を含む): 61544448

約数和(自身を除く): 40870668

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 71, 92, 115, 138, 142, 211, 213, 230, 276, 284, 345, 355, 422, 426, 460, 633, 690, 710, 844, 852, 1055, 1065, 1266, 1380, 1420, 1633, 2110, 2130, 2532, 3165, 3266, 4220, 4260, 4853, 4899, 6330, 6532, 8165, 9706, 9798, 12660, 14559, 14981, 16330, 19412, 19596, 24265, 24495, 29118, 29962, 32660, 44943, 48530, 48990, 58236, 59924, 72795, 74905, 89886, 97060, 97980, 145590, 149810, 179772, 224715, 291180, 299620, 344563, 449430, 689126, 898860, 1033689, 1378252, 1722815, 2067378, 3445630, 4134756, 5168445, 6891260, 10336890, 20673780]

約数ペア:

[(1, 20673780), (2, 10336890), (3, 6891260), (4, 5168445), (5, 4134756), (6, 3445630), (10, 2067378), (12, 1722815), (15, 1378252), (20, 1033689), (23, 898860), (30, 689126), (46, 449430), (60, 344563), (69, 299620), (71, 291180), (92, 224715), (115, 179772), (138, 149810), (142, 145590), (211, 97980), (213, 97060), (230, 89886), (276, 74905), (284, 72795), (345, 59924), (355, 58236), (422, 48990), (426, 48530), (460, 44943), (633, 32660), (690, 29962), (710, 29118), (844, 24495), (852, 24265), (1055, 19596), (1065, 19412), (1266, 16330), (1380, 14981), (1420, 14559), (1633, 12660), (2110, 9798), (2130, 9706), (2532, 8165), (3165, 6532), (3266, 6330), (4220, 4899), (4260, 4853)]