61306020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{421}}^1\times {\mathrm{809}}^1$

素因数の和:1245

約数の個数: 72

約数和(自身を含む): 186633720

約数和(自身を除く): 125327700

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 421, 809, 842, 1263, 1618, 1684, 2105, 2427, 2526, 3236, 3789, 4045, 4210, 4854, 5052, 6315, 7281, 7578, 8090, 8420, 9708, 12135, 12630, 14562, 15156, 16180, 18945, 24270, 25260, 29124, 36405, 37890, 48540, 72810, 75780, 145620, 340589, 681178, 1021767, 1362356, 1702945, 2043534, 3065301, 3405890, 4087068, 5108835, 6130602, 6811780, 10217670, 12261204, 15326505, 20435340, 30653010, 61306020]

約数ペア:

[(1, 61306020), (2, 30653010), (3, 20435340), (4, 15326505), (5, 12261204), (6, 10217670), (9, 6811780), (10, 6130602), (12, 5108835), (15, 4087068), (18, 3405890), (20, 3065301), (30, 2043534), (36, 1702945), (45, 1362356), (60, 1021767), (90, 681178), (180, 340589), (421, 145620), (809, 75780), (842, 72810), (1263, 48540), (1618, 37890), (1684, 36405), (2105, 29124), (2427, 25260), (2526, 24270), (3236, 18945), (3789, 16180), (4045, 15156), (4210, 14562), (4854, 12630), (5052, 12135), (6315, 9708), (7281, 8420), (7578, 8090)]