420450260

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{153449}}^1$

素因数の和:153595

約数の個数: 24

約数和(自身を含む): 889396200

約数和(自身を除く): 468945940

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 153449, 306898, 613796, 767245, 1534490, 3068980, 21022513, 42045026, 84090052, 105112565, 210225130, 420450260]

約数ペア:

[(1, 420450260), (2, 210225130), (4, 105112565), (5, 84090052), (10, 42045026), (20, 21022513), (137, 3068980), (274, 1534490), (548, 767245), (685, 613796), (1370, 306898), (2740, 153449)]