28784102672

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{138385109}}^1$

素因数の和:138385130

約数の個数: 20

約数和(自身を含む): 60059137740

約数和(自身を除く): 31275035068

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 138385109, 276770218, 553540436, 1107080872, 1799006417, 2214161744, 3598012834, 7196025668, 14392051336, 28784102672]

約数ペア:

[(1, 28784102672), (2, 14392051336), (4, 7196025668), (8, 3598012834), (13, 2214161744), (16, 1799006417), (26, 1107080872), (52, 553540436), (104, 276770218), (208, 138385109)]