657140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1$

素因数の和:152

約数の個数: 48

約数和(自身を含む): 1572480

約数和(自身を除く): 915340

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 29, 44, 55, 58, 103, 110, 116, 145, 206, 220, 290, 319, 412, 515, 580, 638, 1030, 1133, 1276, 1595, 2060, 2266, 2987, 3190, 4532, 5665, 5974, 6380, 11330, 11948, 14935, 22660, 29870, 32857, 59740, 65714, 131428, 164285, 328570, 657140]

約数ペア:

[(1, 657140), (2, 328570), (4, 164285), (5, 131428), (10, 65714), (11, 59740), (20, 32857), (22, 29870), (29, 22660), (44, 14935), (55, 11948), (58, 11330), (103, 6380), (110, 5974), (116, 5665), (145, 4532), (206, 3190), (220, 2987), (290, 2266), (319, 2060), (412, 1595), (515, 1276), (580, 1133), (638, 1030)]