20017072

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{40357}}^1$

素因数の和:40396

約数の個数: 20

約数和(自身を含む): 40035136

約数和(自身を除く): 20018064

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 40357, 80714, 161428, 322856, 645712, 1251067, 2502134, 5004268, 10008536, 20017072]

約数ペア:

[(1, 20017072), (2, 10008536), (4, 5004268), (8, 2502134), (16, 1251067), (31, 645712), (62, 322856), (124, 161428), (248, 80714), (496, 40357)]