20418570

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{307}}^1\times {\mathrm{739}}^1$

素因数の和:1059

約数の個数: 48

約数和(自身を含む): 53333280

約数和(自身を除く): 32914710

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 307, 614, 739, 921, 1478, 1535, 1842, 2217, 2763, 3070, 3695, 4434, 4605, 5526, 6651, 7390, 9210, 11085, 13302, 13815, 22170, 27630, 33255, 66510, 226873, 453746, 680619, 1134365, 1361238, 2041857, 2268730, 3403095, 4083714, 6806190, 10209285, 20418570]

約数ペア:

[(1, 20418570), (2, 10209285), (3, 6806190), (5, 4083714), (6, 3403095), (9, 2268730), (10, 2041857), (15, 1361238), (18, 1134365), (30, 680619), (45, 453746), (90, 226873), (307, 66510), (614, 33255), (739, 27630), (921, 22170), (1478, 13815), (1535, 13302), (1842, 11085), (2217, 9210), (2763, 7390), (3070, 6651), (3695, 5526), (4434, 4605)]