866136890

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{19381}}^1$

素因数の和:19538

約数の個数: 32

約数和(自身を含む): 1611807120

約数和(自身を除く): 745670230

約数列:

[1, 2, 5, 10, 41, 82, 109, 205, 218, 410, 545, 1090, 4469, 8938, 19381, 22345, 38762, 44690, 96905, 193810, 794621, 1589242, 2112529, 3973105, 4225058, 7946210, 10562645, 21125290, 86613689, 173227378, 433068445, 866136890]

約数ペア:

[(1, 866136890), (2, 433068445), (5, 173227378), (10, 86613689), (41, 21125290), (82, 10562645), (109, 7946210), (205, 4225058), (218, 3973105), (410, 2112529), (545, 1589242), (1090, 794621), (4469, 193810), (8938, 96905), (19381, 44690), (22345, 38762)]