161731340

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{260857}}^1$

素因数の和:260897

約数の個数: 24

約数和(自身を含む): 350593152

約数和(自身を除く): 188861812

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 260857, 521714, 1043428, 1304285, 2608570, 5217140, 8086567, 16173134, 32346268, 40432835, 80865670, 161731340]

約数ペア:

[(1, 161731340), (2, 80865670), (4, 40432835), (5, 32346268), (10, 16173134), (20, 8086567), (31, 5217140), (62, 2608570), (124, 1304285), (155, 1043428), (310, 521714), (620, 260857)]