40018768

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{80683}}^1$

素因数の和:80722

約数の個数: 20

約数和(自身を含む): 80038528

約数和(自身を除く): 40019760

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 80683, 161366, 322732, 645464, 1290928, 2501173, 5002346, 10004692, 20009384, 40018768]

約数ペア:

[(1, 40018768), (2, 20009384), (4, 10004692), (8, 5002346), (16, 2501173), (31, 1290928), (62, 645464), (124, 322732), (248, 161366), (496, 80683)]