18564220

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{40357}}^1$

素因数の和:40389

約数の個数: 24

約数和(自身を含む): 40680864

約数和(自身を除く): 22116644

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 40357, 80714, 161428, 201785, 403570, 807140, 928211, 1856422, 3712844, 4641055, 9282110, 18564220]

約数ペア:

[(1, 18564220), (2, 9282110), (4, 4641055), (5, 3712844), (10, 1856422), (20, 928211), (23, 807140), (46, 403570), (92, 201785), (115, 161428), (230, 80714), (460, 40357)]