71228440

素因数分解:

$2^3\times 5^1\times {\mathrm{1780711}}^1$

素因数の和:1780722

約数の個数: 16

約数和(自身を含む): 160264080

約数和(自身を除く): 89035640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1780711, 3561422, 7122844, 8903555, 14245688, 17807110, 35614220, 71228440]

約数ペア:

[(1, 71228440), (2, 35614220), (4, 17807110), (5, 14245688), (8, 8903555), (10, 7122844), (20, 3561422), (40, 1780711)]