72128785

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{9901}}^1$

素因数の和:9984

約数の個数: 16

約数和(自身を含む): 91256832

約数和(自身を除く): 19128047

約数列:

[1, 5, 31, 47, 155, 235, 1457, 7285, 9901, 49505, 306931, 465347, 1534655, 2326735, 14425757, 72128785]

約数ペア:

[(1, 72128785), (5, 14425757), (31, 2326735), (47, 1534655), (155, 465347), (235, 306931), (1457, 49505), (7285, 9901)]