18989484490

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{239}}^1\times {\mathrm{273979}}^1$

素因数の和:274254

約数の個数: 32

約数和(自身を含む): 35507808000

約数和(自身を除く): 16518323510

約数列:

[1, 2, 5, 10, 29, 58, 145, 239, 290, 478, 1195, 2390, 6931, 13862, 34655, 69310, 273979, 547958, 1369895, 2739790, 7945391, 15890782, 39726955, 65480981, 79453910, 130961962, 327404905, 654809810, 1898948449, 3797896898, 9494742245, 18989484490]

約数ペア:

[(1, 18989484490), (2, 9494742245), (5, 3797896898), (10, 1898948449), (29, 654809810), (58, 327404905), (145, 130961962), (239, 79453910), (290, 65480981), (478, 39726955), (1195, 15890782), (2390, 7945391), (6931, 2739790), (13862, 1369895), (34655, 547958), (69310, 273979)]