18598910

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{809}}^1$

素因数の和:857

約数の個数: 48

約数和(自身を含む): 38782800

約数和(自身を除く): 20183890

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 121, 190, 209, 242, 418, 605, 809, 1045, 1210, 1618, 2090, 2299, 4045, 4598, 8090, 8899, 11495, 15371, 17798, 22990, 30742, 44495, 76855, 88990, 97889, 153710, 169081, 195778, 338162, 489445, 845405, 978890, 1690810, 1859891, 3719782, 9299455, 18598910]

約数ペア:

[(1, 18598910), (2, 9299455), (5, 3719782), (10, 1859891), (11, 1690810), (19, 978890), (22, 845405), (38, 489445), (55, 338162), (95, 195778), (110, 169081), (121, 153710), (190, 97889), (209, 88990), (242, 76855), (418, 44495), (605, 30742), (809, 22990), (1045, 17798), (1210, 15371), (1618, 11495), (2090, 8899), (2299, 8090), (4045, 4598)]