640963494

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{1548221}}^1$

素因数の和:1548252

約数の個数: 24

約数和(自身を含む): 1449135792

約数和(自身を除く): 808172298

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 138, 207, 414, 1548221, 3096442, 4644663, 9289326, 13933989, 27867978, 35609083, 71218166, 106827249, 213654498, 320481747, 640963494]

約数ペア:

[(1, 640963494), (2, 320481747), (3, 213654498), (6, 106827249), (9, 71218166), (18, 35609083), (23, 27867978), (46, 13933989), (69, 9289326), (138, 4644663), (207, 3096442), (414, 1548221)]