148991660

素因数分解:

$2^2\times 5^1\times {\mathrm{1861}}^1\times {\mathrm{4003}}^1$

素因数の和:5873

約数の個数: 24

約数和(自身を含む): 313128816

約数和(自身を除く): 164137156

約数列:

[1, 2, 4, 5, 10, 20, 1861, 3722, 4003, 7444, 8006, 9305, 16012, 18610, 20015, 37220, 40030, 80060, 7449583, 14899166, 29798332, 37247915, 74495830, 148991660]

約数ペア:

[(1, 148991660), (2, 74495830), (4, 37247915), (5, 29798332), (10, 14899166), (20, 7449583), (1861, 80060), (3722, 40030), (4003, 37220), (7444, 20015), (8006, 18610), (9305, 16012)]