217695680

素因数分解:

$2^6\times 5^1\times {\mathrm{680299}}^1$

素因数の和:680316

約数の個数: 28

約数和(自身を含む): 518388600

約数和(自身を除く): 300692920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 680299, 1360598, 2721196, 3401495, 5442392, 6802990, 10884784, 13605980, 21769568, 27211960, 43539136, 54423920, 108847840, 217695680]

約数ペア:

[(1, 217695680), (2, 108847840), (4, 54423920), (5, 43539136), (8, 27211960), (10, 21769568), (16, 13605980), (20, 10884784), (32, 6802990), (40, 5442392), (64, 3401495), (80, 2721196), (160, 1360598), (320, 680299)]