18983090

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{2039}}^1$

素因数の和:2079

約数の個数: 48

約数和(自身を含む): 41860800

約数和(自身を除く): 22877710

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 49, 70, 95, 98, 133, 190, 245, 266, 490, 665, 931, 1330, 1862, 2039, 4078, 4655, 9310, 10195, 14273, 20390, 28546, 38741, 71365, 77482, 99911, 142730, 193705, 199822, 271187, 387410, 499555, 542374, 999110, 1355935, 1898309, 2711870, 3796618, 9491545, 18983090]

約数ペア:

[(1, 18983090), (2, 9491545), (5, 3796618), (7, 2711870), (10, 1898309), (14, 1355935), (19, 999110), (35, 542374), (38, 499555), (49, 387410), (70, 271187), (95, 199822), (98, 193705), (133, 142730), (190, 99911), (245, 77482), (266, 71365), (490, 38741), (665, 28546), (931, 20390), (1330, 14273), (1862, 10195), (2039, 9310), (4078, 4655)]