71603980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{511457}}^1$

素因数の和:511473

約数の個数: 24

約数和(自身を含む): 171849888

約数和(自身を除く): 100245908

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 511457, 1022914, 2045828, 2557285, 3580199, 5114570, 7160398, 10229140, 14320796, 17900995, 35801990, 71603980]

約数ペア:

[(1, 71603980), (2, 35801990), (4, 17900995), (5, 14320796), (7, 10229140), (10, 7160398), (14, 5114570), (20, 3580199), (28, 2557285), (35, 2045828), (70, 1022914), (140, 511457)]