18640620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{3571}}^1$

素因数の和:3615

約数の個数: 72

約数和(自身を含む): 58509360

約数和(自身を除く): 39868740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 45, 58, 60, 87, 90, 116, 145, 174, 180, 261, 290, 348, 435, 522, 580, 870, 1044, 1305, 1740, 2610, 3571, 5220, 7142, 10713, 14284, 17855, 21426, 32139, 35710, 42852, 53565, 64278, 71420, 103559, 107130, 128556, 160695, 207118, 214260, 310677, 321390, 414236, 517795, 621354, 642780, 932031, 1035590, 1242708, 1553385, 1864062, 2071180, 3106770, 3728124, 4660155, 6213540, 9320310, 18640620]

約数ペア:

[(1, 18640620), (2, 9320310), (3, 6213540), (4, 4660155), (5, 3728124), (6, 3106770), (9, 2071180), (10, 1864062), (12, 1553385), (15, 1242708), (18, 1035590), (20, 932031), (29, 642780), (30, 621354), (36, 517795), (45, 414236), (58, 321390), (60, 310677), (87, 214260), (90, 207118), (116, 160695), (145, 128556), (174, 107130), (180, 103559), (261, 71420), (290, 64278), (348, 53565), (435, 42852), (522, 35710), (580, 32139), (870, 21426), (1044, 17855), (1305, 14284), (1740, 10713), (2610, 7142), (3571, 5220)]