81007964

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{211}}^1\times {\mathrm{2341}}^1$

素因数の和:2597

約数の個数: 24

約数和(自身を含む): 145972176

約数和(自身を除く): 64964212

約数列:

[1, 2, 4, 41, 82, 164, 211, 422, 844, 2341, 4682, 8651, 9364, 17302, 34604, 95981, 191962, 383924, 493951, 987902, 1975804, 20251991, 40503982, 81007964]

約数ペア:

[(1, 81007964), (2, 40503982), (4, 20251991), (41, 1975804), (82, 987902), (164, 493951), (211, 383924), (422, 191962), (844, 95981), (2341, 34604), (4682, 17302), (8651, 9364)]