128267290

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{23279}}^1$

素因数の和:23334

約数の個数: 32

約数和(自身を含む): 251424000

約数和(自身を除く): 123156710

約数列:

[1, 2, 5, 10, 19, 29, 38, 58, 95, 145, 190, 290, 551, 1102, 2755, 5510, 23279, 46558, 116395, 232790, 442301, 675091, 884602, 1350182, 2211505, 3375455, 4423010, 6750910, 12826729, 25653458, 64133645, 128267290]

約数ペア:

[(1, 128267290), (2, 64133645), (5, 25653458), (10, 12826729), (19, 6750910), (29, 4423010), (38, 3375455), (58, 2211505), (95, 1350182), (145, 884602), (190, 675091), (290, 442301), (551, 232790), (1102, 116395), (2755, 46558), (5510, 23279)]