20480200

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{7877}}^1$

素因数の和:7906

約数の個数: 48

約数和(自身を含む): 51285780

約数和(自身を除く): 30805580

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 520, 650, 1300, 2600, 7877, 15754, 31508, 39385, 63016, 78770, 102401, 157540, 196925, 204802, 315080, 393850, 409604, 512005, 787700, 819208, 1024010, 1575400, 2048020, 2560025, 4096040, 5120050, 10240100, 20480200]

約数ペア:

[(1, 20480200), (2, 10240100), (4, 5120050), (5, 4096040), (8, 2560025), (10, 2048020), (13, 1575400), (20, 1024010), (25, 819208), (26, 787700), (40, 512005), (50, 409604), (52, 393850), (65, 315080), (100, 204802), (104, 196925), (130, 157540), (200, 102401), (260, 78770), (325, 63016), (520, 39385), (650, 31508), (1300, 15754), (2600, 7877)]