1915085840

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{7841}}^1$

素因数の和:7968

約数の個数: 80

約数和(自身を含む): 4620882816

約数和(自身を除く): 2705796976

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 71, 80, 86, 142, 172, 215, 284, 344, 355, 430, 568, 688, 710, 860, 1136, 1420, 1720, 2840, 3053, 3440, 5680, 6106, 7841, 12212, 15265, 15682, 24424, 30530, 31364, 39205, 48848, 61060, 62728, 78410, 122120, 125456, 156820, 244240, 313640, 337163, 556711, 627280, 674326, 1113422, 1348652, 1685815, 2226844, 2697304, 2783555, 3371630, 4453688, 5394608, 5567110, 6743260, 8907376, 11134220, 13486520, 22268440, 23938573, 26973040, 44536880, 47877146, 95754292, 119692865, 191508584, 239385730, 383017168, 478771460, 957542920, 1915085840]

約数ペア:

[(1, 1915085840), (2, 957542920), (4, 478771460), (5, 383017168), (8, 239385730), (10, 191508584), (16, 119692865), (20, 95754292), (40, 47877146), (43, 44536880), (71, 26973040), (80, 23938573), (86, 22268440), (142, 13486520), (172, 11134220), (215, 8907376), (284, 6743260), (344, 5567110), (355, 5394608), (430, 4453688), (568, 3371630), (688, 2783555), (710, 2697304), (860, 2226844), (1136, 1685815), (1420, 1348652), (1720, 1113422), (2840, 674326), (3053, 627280), (3440, 556711), (5680, 337163), (6106, 313640), (7841, 244240), (12212, 156820), (15265, 125456), (15682, 122120), (24424, 78410), (30530, 62728), (31364, 61060), (39205, 48848)]