278312450

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{428173}}^1$

素因数の和:428198

約数の個数: 24

約数和(自身を含む): 557482548

約数和(自身を除く): 279170098

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 428173, 856346, 2140865, 4281730, 5566249, 10704325, 11132498, 21408650, 27831245, 55662490, 139156225, 278312450]

約数ペア:

[(1, 278312450), (2, 139156225), (5, 55662490), (10, 27831245), (13, 21408650), (25, 11132498), (26, 10704325), (50, 5566249), (65, 4281730), (130, 2140865), (325, 856346), (650, 428173)]