65221780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{250853}}^1$

素因数の和:250875

約数の個数: 24

約数和(自身を含む): 147502152

約数和(自身を除く): 82280372

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 250853, 501706, 1003412, 1254265, 2508530, 3261089, 5017060, 6522178, 13044356, 16305445, 32610890, 65221780]

約数ペア:

[(1, 65221780), (2, 32610890), (4, 16305445), (5, 13044356), (10, 6522178), (13, 5017060), (20, 3261089), (26, 2508530), (52, 1254265), (65, 1003412), (130, 501706), (260, 250853)]