390974540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{601}}^1\times {\mathrm{2957}}^1$

素因数の和:3578

約数の個数: 48

約数和(自身を含む): 897480864

約数和(自身を除く): 506506324

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 601, 1202, 2404, 2957, 3005, 5914, 6010, 6611, 11828, 12020, 13222, 14785, 26444, 29570, 32527, 33055, 59140, 65054, 66110, 130108, 132220, 162635, 325270, 650540, 1777157, 3554314, 7108628, 8885785, 17771570, 19548727, 35543140, 39097454, 78194908, 97743635, 195487270, 390974540]

約数ペア:

[(1, 390974540), (2, 195487270), (4, 97743635), (5, 78194908), (10, 39097454), (11, 35543140), (20, 19548727), (22, 17771570), (44, 8885785), (55, 7108628), (110, 3554314), (220, 1777157), (601, 650540), (1202, 325270), (2404, 162635), (2957, 132220), (3005, 130108), (5914, 66110), (6010, 65054), (6611, 59140), (11828, 33055), (12020, 32527), (13222, 29570), (14785, 26444)]