681636818

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{129049}}^1$

素因数の和:129209

約数の個数: 16

約数和(自身を含む): 1084020000

約数和(自身を除く): 402383182

約数列:

[1, 2, 19, 38, 139, 278, 2641, 5282, 129049, 258098, 2451931, 4903862, 17937811, 35875622, 340818409, 681636818]

約数ペア:

[(1, 681636818), (2, 340818409), (19, 35875622), (38, 17937811), (139, 4903862), (278, 2451931), (2641, 258098), (5282, 129049)]