65120280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{421}}^1\times {\mathrm{1289}}^1$

素因数の和:1724

約数の個数: 64

約数和(自身を含む): 195976800

約数和(自身を除く): 130856520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 421, 842, 1263, 1289, 1684, 2105, 2526, 2578, 3368, 3867, 4210, 5052, 5156, 6315, 6445, 7734, 8420, 10104, 10312, 12630, 12890, 15468, 16840, 19335, 25260, 25780, 30936, 38670, 50520, 51560, 77340, 154680, 542669, 1085338, 1628007, 2170676, 2713345, 3256014, 4341352, 5426690, 6512028, 8140035, 10853380, 13024056, 16280070, 21706760, 32560140, 65120280]

約数ペア:

[(1, 65120280), (2, 32560140), (3, 21706760), (4, 16280070), (5, 13024056), (6, 10853380), (8, 8140035), (10, 6512028), (12, 5426690), (15, 4341352), (20, 3256014), (24, 2713345), (30, 2170676), (40, 1628007), (60, 1085338), (120, 542669), (421, 154680), (842, 77340), (1263, 51560), (1289, 50520), (1684, 38670), (2105, 30936), (2526, 25780), (2578, 25260), (3368, 19335), (3867, 16840), (4210, 15468), (5052, 12890), (5156, 12630), (6315, 10312), (6445, 10104), (7734, 8420)]