208707070

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{145949}}^1$

素因数の和:145980

約数の個数: 32

約数和(自身を含む): 441352800

約数和(自身を除く): 232645730

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 286, 715, 1430, 145949, 291898, 729745, 1459490, 1605439, 1897337, 3210878, 3794674, 8027195, 9486685, 16054390, 18973370, 20870707, 41741414, 104353535, 208707070]

約数ペア:

[(1, 208707070), (2, 104353535), (5, 41741414), (10, 20870707), (11, 18973370), (13, 16054390), (22, 9486685), (26, 8027195), (55, 3794674), (65, 3210878), (110, 1897337), (130, 1605439), (143, 1459490), (286, 729745), (715, 291898), (1430, 145949)]