2489366920

素因数分解:

$2^3\times 5^1\times {\mathrm{1549}}^1\times {\mathrm{40177}}^1$

素因数の和:41737

約数の個数: 32

約数和(自身を含む): 5604831000

約数和(自身を除く): 3115464080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1549, 3098, 6196, 7745, 12392, 15490, 30980, 40177, 61960, 80354, 160708, 200885, 321416, 401770, 803540, 1607080, 62234173, 124468346, 248936692, 311170865, 497873384, 622341730, 1244683460, 2489366920]

約数ペア:

[(1, 2489366920), (2, 1244683460), (4, 622341730), (5, 497873384), (8, 311170865), (10, 248936692), (20, 124468346), (40, 62234173), (1549, 1607080), (3098, 803540), (6196, 401770), (7745, 321416), (12392, 200885), (15490, 160708), (30980, 80354), (40177, 61960)]