40005872

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{80657}}^1$

素因数の和:80696

約数の個数: 20

約数和(自身を含む): 80012736

約数和(自身を除く): 40006864

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 80657, 161314, 322628, 645256, 1290512, 2500367, 5000734, 10001468, 20002936, 40005872]

約数ペア:

[(1, 40005872), (2, 20002936), (4, 10001468), (8, 5000734), (16, 2500367), (31, 1290512), (62, 645256), (124, 322628), (248, 161314), (496, 80657)]