665625130

素因数分解:

$2^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{241}}^1\times {\mathrm{1987}}^1$

素因数の和:2374

約数の個数: 32

約数和(自身を含む): 1212361920

約数和(自身を除く): 546736790

約数列:

[1, 2, 5, 10, 139, 241, 278, 482, 695, 1205, 1390, 1987, 2410, 3974, 9935, 19870, 33499, 66998, 167495, 276193, 334990, 478867, 552386, 957734, 1380965, 2394335, 2761930, 4788670, 66562513, 133125026, 332812565, 665625130]

約数ペア:

[(1, 665625130), (2, 332812565), (5, 133125026), (10, 66562513), (139, 4788670), (241, 2761930), (278, 2394335), (482, 1380965), (695, 957734), (1205, 552386), (1390, 478867), (1987, 334990), (2410, 276193), (3974, 167495), (9935, 66998), (19870, 33499)]