189808040

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{153071}}^1$

素因数の和:153113

約数の個数: 32

約数和(自身を含む): 440847360

約数和(自身を除く): 251039320

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 153071, 306142, 612284, 765355, 1224568, 1530710, 3061420, 4745201, 6122840, 9490402, 18980804, 23726005, 37961608, 47452010, 94904020, 189808040]

約数ペア:

[(1, 189808040), (2, 94904020), (4, 47452010), (5, 37961608), (8, 23726005), (10, 18980804), (20, 9490402), (31, 6122840), (40, 4745201), (62, 3061420), (124, 1530710), (155, 1224568), (248, 765355), (310, 612284), (620, 306142), (1240, 153071)]