20165874740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{421}}^1\times {\mathrm{217727}}^1$

素因数の和:218168

約数の個数: 48

約数和(自身を含む): 46308132864

約数和(自身を除く): 26142258124

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 421, 842, 1684, 2105, 4210, 4631, 8420, 9262, 18524, 23155, 46310, 92620, 217727, 435454, 870908, 1088635, 2177270, 2394997, 4354540, 4789994, 9579988, 11974985, 23949970, 47899940, 91663067, 183326134, 366652268, 458315335, 916630670, 1008293737, 1833261340, 2016587474, 4033174948, 5041468685, 10082937370, 20165874740]

約数ペア:

[(1, 20165874740), (2, 10082937370), (4, 5041468685), (5, 4033174948), (10, 2016587474), (11, 1833261340), (20, 1008293737), (22, 916630670), (44, 458315335), (55, 366652268), (110, 183326134), (220, 91663067), (421, 47899940), (842, 23949970), (1684, 11974985), (2105, 9579988), (4210, 4789994), (4631, 4354540), (8420, 2394997), (9262, 2177270), (18524, 1088635), (23155, 870908), (46310, 435454), (92620, 217727)]