278937290

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{8111}}^1$

素因数の和:8318

約数の個数: 32

約数和(自身を含む): 531498240

約数和(自身を除く): 252560950

約数列:

[1, 2, 5, 10, 19, 38, 95, 181, 190, 362, 905, 1810, 3439, 6878, 8111, 16222, 17195, 34390, 40555, 81110, 154109, 308218, 770545, 1468091, 1541090, 2936182, 7340455, 14680910, 27893729, 55787458, 139468645, 278937290]

約数ペア:

[(1, 278937290), (2, 139468645), (5, 55787458), (10, 27893729), (19, 14680910), (38, 7340455), (95, 2936182), (181, 1541090), (190, 1468091), (362, 770545), (905, 308218), (1810, 154109), (3439, 81110), (6878, 40555), (8111, 34390), (16222, 17195)]