398620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1049}}^1$

素因数の和:1077

約数の個数: 24

約数和(自身を含む): 882000

約数和(自身を除く): 483380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 1049, 2098, 4196, 5245, 10490, 19931, 20980, 39862, 79724, 99655, 199310, 398620]

約数ペア:

[(1, 398620), (2, 199310), (4, 99655), (5, 79724), (10, 39862), (19, 20980), (20, 19931), (38, 10490), (76, 5245), (95, 4196), (190, 2098), (380, 1049)]