20049808

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{40423}}^1$

素因数の和:40462

約数の個数: 20

約数和(自身を含む): 40100608

約数和(自身を除く): 20050800

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 40423, 80846, 161692, 323384, 646768, 1253113, 2506226, 5012452, 10024904, 20049808]

約数ペア:

[(1, 20049808), (2, 10024904), (4, 5012452), (8, 2506226), (16, 1253113), (31, 646768), (62, 323384), (124, 161692), (248, 80846), (496, 40423)]