18730580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{4481}}^1$

素因数の和:4520

約数の個数: 48

約数和(自身を含む): 45178560

約数和(自身を除く): 26447980

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 836, 1045, 2090, 4180, 4481, 8962, 17924, 22405, 44810, 49291, 85139, 89620, 98582, 170278, 197164, 246455, 340556, 425695, 492910, 851390, 936529, 985820, 1702780, 1873058, 3746116, 4682645, 9365290, 18730580]

約数ペア:

[(1, 18730580), (2, 9365290), (4, 4682645), (5, 3746116), (10, 1873058), (11, 1702780), (19, 985820), (20, 936529), (22, 851390), (38, 492910), (44, 425695), (55, 340556), (76, 246455), (95, 197164), (110, 170278), (190, 98582), (209, 89620), (220, 85139), (380, 49291), (418, 44810), (836, 22405), (1045, 17924), (2090, 8962), (4180, 4481)]