313352240

素因数分解:

$2^4\times 5^1\times {\mathrm{3916903}}^1$

素因数の和:3916916

約数の個数: 20

約数和(自身を含む): 728544144

約数和(自身を除く): 415191904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3916903, 7833806, 15667612, 19584515, 31335224, 39169030, 62670448, 78338060, 156676120, 313352240]

約数ペア:

[(1, 313352240), (2, 156676120), (4, 78338060), (5, 62670448), (8, 39169030), (10, 31335224), (16, 19584515), (20, 15667612), (40, 7833806), (80, 3916903)]