155380

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{457}}^1$

素因数の和:483

約数の個数: 24

約数和(自身を含む): 346248

約数和(自身を除く): 190868

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 457, 914, 1828, 2285, 4570, 7769, 9140, 15538, 31076, 38845, 77690, 155380]

約数ペア:

[(1, 155380), (2, 77690), (4, 38845), (5, 31076), (10, 15538), (17, 9140), (20, 7769), (34, 4570), (68, 2285), (85, 1828), (170, 914), (340, 457)]