418658980

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{167}}^1\times {\mathrm{769}}^1$

素因数の和:1108

約数の個数: 48

約数和(自身を含む): 891031680

約数和(自身を除く): 472372700

約数列:

[1, 2, 4, 5, 10, 20, 163, 167, 326, 334, 652, 668, 769, 815, 835, 1538, 1630, 1670, 3076, 3260, 3340, 3845, 7690, 15380, 27221, 54442, 108884, 125347, 128423, 136105, 250694, 256846, 272210, 501388, 513692, 544420, 626735, 642115, 1253470, 1284230, 2506940, 2568460, 20932949, 41865898, 83731796, 104664745, 209329490, 418658980]

約数ペア:

[(1, 418658980), (2, 209329490), (4, 104664745), (5, 83731796), (10, 41865898), (20, 20932949), (163, 2568460), (167, 2506940), (326, 1284230), (334, 1253470), (652, 642115), (668, 626735), (769, 544420), (815, 513692), (835, 501388), (1538, 272210), (1630, 256846), (1670, 250694), (3076, 136105), (3260, 128423), (3340, 125347), (3845, 108884), (7690, 54442), (15380, 27221)]