20633990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{103}}^1$

素因数の和:213

約数の個数: 64

約数和(自身を含む): 42771456

約数和(自身を除く): 22137466

約数列:

[1, 2, 5, 10, 13, 23, 26, 46, 65, 67, 103, 115, 130, 134, 206, 230, 299, 335, 515, 598, 670, 871, 1030, 1339, 1495, 1541, 1742, 2369, 2678, 2990, 3082, 4355, 4738, 6695, 6901, 7705, 8710, 11845, 13390, 13802, 15410, 20033, 23690, 30797, 34505, 40066, 61594, 69010, 89713, 100165, 153985, 158723, 179426, 200330, 307970, 317446, 448565, 793615, 897130, 1587230, 2063399, 4126798, 10316995, 20633990]

約数ペア:

[(1, 20633990), (2, 10316995), (5, 4126798), (10, 2063399), (13, 1587230), (23, 897130), (26, 793615), (46, 448565), (65, 317446), (67, 307970), (103, 200330), (115, 179426), (130, 158723), (134, 153985), (206, 100165), (230, 89713), (299, 69010), (335, 61594), (515, 40066), (598, 34505), (670, 30797), (871, 23690), (1030, 20033), (1339, 15410), (1495, 13802), (1541, 13390), (1742, 11845), (2369, 8710), (2678, 7705), (2990, 6901), (3082, 6695), (4355, 4738)]