1639852040

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{383143}}^1$

素因数の和:383261

約数の個数: 32

約数和(自身を含む): 3724159680

約数和(自身を除く): 2084307640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 428, 535, 856, 1070, 2140, 4280, 383143, 766286, 1532572, 1915715, 3065144, 3831430, 7662860, 15325720, 40996301, 81992602, 163985204, 204981505, 327970408, 409963010, 819926020, 1639852040]

約数ペア:

[(1, 1639852040), (2, 819926020), (4, 409963010), (5, 327970408), (8, 204981505), (10, 163985204), (20, 81992602), (40, 40996301), (107, 15325720), (214, 7662860), (428, 3831430), (535, 3065144), (856, 1915715), (1070, 1532572), (2140, 766286), (4280, 383143)]