20853320

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{17977}}^1$

素因数の和:18017

約数の個数: 32

約数和(自身を含む): 48540600

約数和(自身を除く): 27687280

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 17977, 35954, 71908, 89885, 143816, 179770, 359540, 521333, 719080, 1042666, 2085332, 2606665, 4170664, 5213330, 10426660, 20853320]

約数ペア:

[(1, 20853320), (2, 10426660), (4, 5213330), (5, 4170664), (8, 2606665), (10, 2085332), (20, 1042666), (29, 719080), (40, 521333), (58, 359540), (116, 179770), (145, 143816), (232, 89885), (290, 71908), (580, 35954), (1160, 17977)]