20928360

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{10259}}^1$

素因数の和:10290

約数の個数: 64

約数和(自身を含む): 66484800

約数和(自身を除く): 45556440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 255, 340, 408, 510, 680, 1020, 2040, 10259, 20518, 30777, 41036, 51295, 61554, 82072, 102590, 123108, 153885, 174403, 205180, 246216, 307770, 348806, 410360, 523209, 615540, 697612, 872015, 1046418, 1231080, 1395224, 1744030, 2092836, 2616045, 3488060, 4185672, 5232090, 6976120, 10464180, 20928360]

約数ペア:

[(1, 20928360), (2, 10464180), (3, 6976120), (4, 5232090), (5, 4185672), (6, 3488060), (8, 2616045), (10, 2092836), (12, 1744030), (15, 1395224), (17, 1231080), (20, 1046418), (24, 872015), (30, 697612), (34, 615540), (40, 523209), (51, 410360), (60, 348806), (68, 307770), (85, 246216), (102, 205180), (120, 174403), (136, 153885), (170, 123108), (204, 102590), (255, 82072), (340, 61554), (408, 51295), (510, 41036), (680, 30777), (1020, 20518), (2040, 10259)]