1281477560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{61967}}^1$

素因数の和:62036

約数の個数: 64

約数和(自身を含む): 3212421120

約数和(自身を除く): 1930943560

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 47, 55, 88, 94, 110, 188, 220, 235, 376, 440, 470, 517, 940, 1034, 1880, 2068, 2585, 4136, 5170, 10340, 20680, 61967, 123934, 247868, 309835, 495736, 619670, 681637, 1239340, 1363274, 2478680, 2726548, 2912449, 3408185, 5453096, 5824898, 6816370, 11649796, 13632740, 14562245, 23299592, 27265480, 29124490, 32036939, 58248980, 64073878, 116497960, 128147756, 160184695, 256295512, 320369390, 640738780, 1281477560]

約数ペア:

[(1, 1281477560), (2, 640738780), (4, 320369390), (5, 256295512), (8, 160184695), (10, 128147756), (11, 116497960), (20, 64073878), (22, 58248980), (40, 32036939), (44, 29124490), (47, 27265480), (55, 23299592), (88, 14562245), (94, 13632740), (110, 11649796), (188, 6816370), (220, 5824898), (235, 5453096), (376, 3408185), (440, 2912449), (470, 2726548), (517, 2478680), (940, 1363274), (1034, 1239340), (1880, 681637), (2068, 619670), (2585, 495736), (4136, 309835), (5170, 247868), (10340, 123934), (20680, 61967)]