20071240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{739}}^1$

素因数の和:854

約数の個数: 64

約数和(自身を含む): 52214400

約数和(自身を除く): 32143160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 97, 140, 194, 280, 388, 485, 679, 739, 776, 970, 1358, 1478, 1940, 2716, 2956, 3395, 3695, 3880, 5173, 5432, 5912, 6790, 7390, 10346, 13580, 14780, 20692, 25865, 27160, 29560, 41384, 51730, 71683, 103460, 143366, 206920, 286732, 358415, 501781, 573464, 716830, 1003562, 1433660, 2007124, 2508905, 2867320, 4014248, 5017810, 10035620, 20071240]

約数ペア:

[(1, 20071240), (2, 10035620), (4, 5017810), (5, 4014248), (7, 2867320), (8, 2508905), (10, 2007124), (14, 1433660), (20, 1003562), (28, 716830), (35, 573464), (40, 501781), (56, 358415), (70, 286732), (97, 206920), (140, 143366), (194, 103460), (280, 71683), (388, 51730), (485, 41384), (679, 29560), (739, 27160), (776, 25865), (970, 20692), (1358, 14780), (1478, 13580), (1940, 10346), (2716, 7390), (2956, 6790), (3395, 5912), (3695, 5432), (3880, 5173)]