102400220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{393847}}^1$

素因数の和:393869

約数の個数: 24

約数和(自身を含む): 231582624

約数和(自身を除く): 129182404

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 393847, 787694, 1575388, 1969235, 3938470, 5120011, 7876940, 10240022, 20480044, 25600055, 51200110, 102400220]

約数ペア:

[(1, 102400220), (2, 51200110), (4, 25600055), (5, 20480044), (10, 10240022), (13, 7876940), (20, 5120011), (26, 3938470), (52, 1969235), (65, 1575388), (130, 787694), (260, 393847)]