64672720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{2179}}^1$

素因数の和:2252

約数の個数: 80

約数和(自身を含む): 175167360

約数和(自身を除く): 110494640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 53, 56, 70, 80, 106, 112, 140, 212, 265, 280, 371, 424, 530, 560, 742, 848, 1060, 1484, 1855, 2120, 2179, 2968, 3710, 4240, 4358, 5936, 7420, 8716, 10895, 14840, 15253, 17432, 21790, 29680, 30506, 34864, 43580, 61012, 76265, 87160, 115487, 122024, 152530, 174320, 230974, 244048, 305060, 461948, 577435, 610120, 808409, 923896, 1154870, 1220240, 1616818, 1847792, 2309740, 3233636, 4042045, 4619480, 6467272, 8084090, 9238960, 12934544, 16168180, 32336360, 64672720]

約数ペア:

[(1, 64672720), (2, 32336360), (4, 16168180), (5, 12934544), (7, 9238960), (8, 8084090), (10, 6467272), (14, 4619480), (16, 4042045), (20, 3233636), (28, 2309740), (35, 1847792), (40, 1616818), (53, 1220240), (56, 1154870), (70, 923896), (80, 808409), (106, 610120), (112, 577435), (140, 461948), (212, 305060), (265, 244048), (280, 230974), (371, 174320), (424, 152530), (530, 122024), (560, 115487), (742, 87160), (848, 76265), (1060, 61012), (1484, 43580), (1855, 34864), (2120, 30506), (2179, 29680), (2968, 21790), (3710, 17432), (4240, 15253), (4358, 14840), (5936, 10895), (7420, 8716)]