2018648440

素因数分解:

$2^3\times 5^1\times {\mathrm{191}}^1\times {\mathrm{264221}}^1$

素因数の和:264423

約数の個数: 32

約数和(自身を含む): 4565756160

約数和(自身を除く): 2547107720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 191, 382, 764, 955, 1528, 1910, 3820, 7640, 264221, 528442, 1056884, 1321105, 2113768, 2642210, 5284420, 10568840, 50466211, 100932422, 201864844, 252331055, 403729688, 504662110, 1009324220, 2018648440]

約数ペア:

[(1, 2018648440), (2, 1009324220), (4, 504662110), (5, 403729688), (8, 252331055), (10, 201864844), (20, 100932422), (40, 50466211), (191, 10568840), (382, 5284420), (764, 2642210), (955, 2113768), (1528, 1321105), (1910, 1056884), (3820, 528442), (7640, 264221)]