1243031960

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{277}}^1\times {\mathrm{2609}}^1$

素因数の和:2940

約数の個数: 64

約数和(自身を含む): 2873296800

約数和(自身を除く): 1630264840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 277, 344, 430, 554, 860, 1108, 1385, 1720, 2216, 2609, 2770, 5218, 5540, 10436, 11080, 11911, 13045, 20872, 23822, 26090, 47644, 52180, 59555, 95288, 104360, 112187, 119110, 224374, 238220, 448748, 476440, 560935, 722693, 897496, 1121870, 1445386, 2243740, 2890772, 3613465, 4487480, 5781544, 7226930, 14453860, 28907720, 31075799, 62151598, 124303196, 155378995, 248606392, 310757990, 621515980, 1243031960]

約数ペア:

[(1, 1243031960), (2, 621515980), (4, 310757990), (5, 248606392), (8, 155378995), (10, 124303196), (20, 62151598), (40, 31075799), (43, 28907720), (86, 14453860), (172, 7226930), (215, 5781544), (277, 4487480), (344, 3613465), (430, 2890772), (554, 2243740), (860, 1445386), (1108, 1121870), (1385, 897496), (1720, 722693), (2216, 560935), (2609, 476440), (2770, 448748), (5218, 238220), (5540, 224374), (10436, 119110), (11080, 112187), (11911, 104360), (13045, 95288), (20872, 59555), (23822, 52180), (26090, 47644)]