18238450

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{499}}^1$

素因数の和:571

約数の個数: 48

約数和(自身を含む): 36828000

約数和(自身を除く): 18589550

約数列:

[1, 2, 5, 10, 17, 25, 34, 43, 50, 85, 86, 170, 215, 425, 430, 499, 731, 850, 998, 1075, 1462, 2150, 2495, 3655, 4990, 7310, 8483, 12475, 16966, 18275, 21457, 24950, 36550, 42415, 42914, 84830, 107285, 212075, 214570, 364769, 424150, 536425, 729538, 1072850, 1823845, 3647690, 9119225, 18238450]

約数ペア:

[(1, 18238450), (2, 9119225), (5, 3647690), (10, 1823845), (17, 1072850), (25, 729538), (34, 536425), (43, 424150), (50, 364769), (85, 214570), (86, 212075), (170, 107285), (215, 84830), (425, 42914), (430, 42415), (499, 36550), (731, 24950), (850, 21457), (998, 18275), (1075, 16966), (1462, 12475), (2150, 8483), (2495, 7310), (3655, 4990)]