90089840

素因数分解:

$2^4\times 5^1\times {\mathrm{727}}^1\times {\mathrm{1549}}^1$

素因数の和:2289

約数の個数: 40

約数和(自身を含む): 209882400

約数和(自身を除く): 119792560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 727, 1454, 1549, 2908, 3098, 3635, 5816, 6196, 7270, 7745, 11632, 12392, 14540, 15490, 24784, 29080, 30980, 58160, 61960, 123920, 1126123, 2252246, 4504492, 5630615, 9008984, 11261230, 18017968, 22522460, 45044920, 90089840]

約数ペア:

[(1, 90089840), (2, 45044920), (4, 22522460), (5, 18017968), (8, 11261230), (10, 9008984), (16, 5630615), (20, 4504492), (40, 2252246), (80, 1126123), (727, 123920), (1454, 61960), (1549, 58160), (2908, 30980), (3098, 29080), (3635, 24784), (5816, 15490), (6196, 14540), (7270, 12392), (7745, 11632)]