205804820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{60889}}^1$

素因数の和:60924

約数の個数: 36

約数和(自身を含む): 468000540

約数和(自身を除く): 262195720

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 60889, 121778, 243556, 304445, 608890, 791557, 1217780, 1583114, 3166228, 3957785, 7915570, 10290241, 15831140, 20580482, 41160964, 51451205, 102902410, 205804820]

約数ペア:

[(1, 205804820), (2, 102902410), (4, 51451205), (5, 41160964), (10, 20580482), (13, 15831140), (20, 10290241), (26, 7915570), (52, 3957785), (65, 3166228), (130, 1583114), (169, 1217780), (260, 791557), (338, 608890), (676, 304445), (845, 243556), (1690, 121778), (3380, 60889)]