257279570

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{797}}^1\times {\mathrm{1699}}^1$

素因数の和:2522

約数の個数: 32

約数和(自身を含む): 488376000

約数和(自身を除く): 231096430

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 797, 1594, 1699, 3398, 3985, 7970, 8495, 15143, 16990, 30286, 32281, 64562, 75715, 151430, 161405, 322810, 1354103, 2708206, 6770515, 13541030, 25727957, 51455914, 128639785, 257279570]

約数ペア:

[(1, 257279570), (2, 128639785), (5, 51455914), (10, 25727957), (19, 13541030), (38, 6770515), (95, 2708206), (190, 1354103), (797, 322810), (1594, 161405), (1699, 151430), (3398, 75715), (3985, 64562), (7970, 32281), (8495, 30286), (15143, 16990)]