40992280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{521}}^1$

素因数の和:820

約数の個数: 64

約数和(自身を含む): 105986880

約数和(自身を除く): 64994600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 281, 521, 562, 1042, 1124, 1405, 1967, 2084, 2248, 2605, 2810, 3647, 3934, 4168, 5210, 5620, 7294, 7868, 9835, 10420, 11240, 14588, 15736, 18235, 19670, 20840, 29176, 36470, 39340, 72940, 78680, 145880, 146401, 292802, 585604, 732005, 1024807, 1171208, 1464010, 2049614, 2928020, 4099228, 5124035, 5856040, 8198456, 10248070, 20496140, 40992280]

約数ペア:

[(1, 40992280), (2, 20496140), (4, 10248070), (5, 8198456), (7, 5856040), (8, 5124035), (10, 4099228), (14, 2928020), (20, 2049614), (28, 1464010), (35, 1171208), (40, 1024807), (56, 732005), (70, 585604), (140, 292802), (280, 146401), (281, 145880), (521, 78680), (562, 72940), (1042, 39340), (1124, 36470), (1405, 29176), (1967, 20840), (2084, 19670), (2248, 18235), (2605, 15736), (2810, 14588), (3647, 11240), (3934, 10420), (4168, 9835), (5210, 7868), (5620, 7294)]