289746890

素因数分解:

$2^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{149}}^1\times {\mathrm{1399}}^1$

素因数の和:1694

約数の個数: 32

約数和(自身を含む): 529200000

約数和(自身を除く): 239453110

約数列:

[1, 2, 5, 10, 139, 149, 278, 298, 695, 745, 1390, 1399, 1490, 2798, 6995, 13990, 20711, 41422, 103555, 194461, 207110, 208451, 388922, 416902, 972305, 1042255, 1944610, 2084510, 28974689, 57949378, 144873445, 289746890]

約数ペア:

[(1, 289746890), (2, 144873445), (5, 57949378), (10, 28974689), (139, 2084510), (149, 1944610), (278, 1042255), (298, 972305), (695, 416902), (745, 388922), (1390, 208451), (1399, 207110), (1490, 194461), (2798, 103555), (6995, 41422), (13990, 20711)]