1237647640

素因数分解:

$2^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{281}}^1\times {\mathrm{739}}^1$

素因数の和:1180

約数の個数: 64

約数和(自身を含む): 2817180000

約数和(自身を除く): 1579532360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 149, 281, 298, 562, 596, 739, 745, 1124, 1192, 1405, 1478, 1490, 2248, 2810, 2956, 2980, 3695, 5620, 5912, 5960, 7390, 11240, 14780, 29560, 41869, 83738, 110111, 167476, 207659, 209345, 220222, 334952, 415318, 418690, 440444, 550555, 830636, 837380, 880888, 1038295, 1101110, 1661272, 1674760, 2076590, 2202220, 4153180, 4404440, 8306360, 30941191, 61882382, 123764764, 154705955, 247529528, 309411910, 618823820, 1237647640]

約数ペア:

[(1, 1237647640), (2, 618823820), (4, 309411910), (5, 247529528), (8, 154705955), (10, 123764764), (20, 61882382), (40, 30941191), (149, 8306360), (281, 4404440), (298, 4153180), (562, 2202220), (596, 2076590), (739, 1674760), (745, 1661272), (1124, 1101110), (1192, 1038295), (1405, 880888), (1478, 837380), (1490, 830636), (2248, 550555), (2810, 440444), (2956, 418690), (2980, 415318), (3695, 334952), (5620, 220222), (5912, 209345), (5960, 207659), (7390, 167476), (11240, 110111), (14780, 83738), (29560, 41869)]