648668839

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{10687}}^1$

素因数の和:10759

約数の個数: 32

約数和(自身を含む): 861880320

約数和(自身を除く): 213211481

約数列:

[1, 7, 13, 23, 29, 91, 161, 203, 299, 377, 667, 2093, 2639, 4669, 8671, 10687, 60697, 74809, 138931, 245801, 309923, 972517, 1720607, 2169461, 3195413, 4028999, 7128229, 22367891, 28202993, 49897603, 92666977, 648668839]

約数ペア:

[(1, 648668839), (7, 92666977), (13, 49897603), (23, 28202993), (29, 22367891), (91, 7128229), (161, 4028999), (203, 3195413), (299, 2169461), (377, 1720607), (667, 972517), (2093, 309923), (2639, 245801), (4669, 138931), (8671, 74809), (10687, 60697)]