71820770

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{20939}}^1$

素因数の和:20967

約数の個数: 32

約数和(自身を含む): 150768000

約数和(自身を除く): 78947230

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 343, 490, 686, 1715, 3430, 20939, 41878, 104695, 146573, 209390, 293146, 732865, 1026011, 1465730, 2052022, 5130055, 7182077, 10260110, 14364154, 35910385, 71820770]

約数ペア:

[(1, 71820770), (2, 35910385), (5, 14364154), (7, 10260110), (10, 7182077), (14, 5130055), (35, 2052022), (49, 1465730), (70, 1026011), (98, 732865), (245, 293146), (343, 209390), (490, 146573), (686, 104695), (1715, 41878), (3430, 20939)]