890989778

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{67489}}^1$

素因数の和:67562

約数の個数: 32

約数和(自身を含む): 1632718080

約数和(自身を除く): 741728302

約数列:

[1, 2, 7, 14, 23, 41, 46, 82, 161, 287, 322, 574, 943, 1886, 6601, 13202, 67489, 134978, 472423, 944846, 1552247, 2767049, 3104494, 5534098, 10865729, 19369343, 21731458, 38738686, 63642127, 127284254, 445494889, 890989778]

約数ペア:

[(1, 890989778), (2, 445494889), (7, 127284254), (14, 63642127), (23, 38738686), (41, 21731458), (46, 19369343), (82, 10865729), (161, 5534098), (287, 3104494), (322, 2767049), (574, 1552247), (943, 944846), (1886, 472423), (6601, 134978), (13202, 67489)]