201789640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{388057}}^1$

素因数の和:388081

約数の個数: 32

約数和(自身を含む): 488953080

約数和(自身を除く): 287163440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 388057, 776114, 1552228, 1940285, 3104456, 3880570, 5044741, 7761140, 10089482, 15522280, 20178964, 25223705, 40357928, 50447410, 100894820, 201789640]

約数ペア:

[(1, 201789640), (2, 100894820), (4, 50447410), (5, 40357928), (8, 25223705), (10, 20178964), (13, 15522280), (20, 10089482), (26, 7761140), (40, 5044741), (52, 3880570), (65, 3104456), (104, 1940285), (130, 1552228), (260, 776114), (520, 388057)]