819542020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{379}}^1\times {\mathrm{9829}}^1$

素因数の和:10228

約数の個数: 48

約数和(自身を含む): 1882641600

約数和(自身を除く): 1063099580

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 379, 758, 1516, 1895, 3790, 4169, 7580, 8338, 9829, 16676, 19658, 20845, 39316, 41690, 49145, 83380, 98290, 108119, 196580, 216238, 432476, 540595, 1081190, 2162380, 3725191, 7450382, 14900764, 18625955, 37251910, 40977101, 74503820, 81954202, 163908404, 204885505, 409771010, 819542020]

約数ペア:

[(1, 819542020), (2, 409771010), (4, 204885505), (5, 163908404), (10, 81954202), (11, 74503820), (20, 40977101), (22, 37251910), (44, 18625955), (55, 14900764), (110, 7450382), (220, 3725191), (379, 2162380), (758, 1081190), (1516, 540595), (1895, 432476), (3790, 216238), (4169, 196580), (7580, 108119), (8338, 98290), (9829, 83380), (16676, 49145), (19658, 41690), (20845, 39316)]