20920690

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{5639}}^1$

素因数の和:5706

約数の個数: 32

約数和(自身を含む): 43856640

約数和(自身を除く): 22935950

約数列:

[1, 2, 5, 7, 10, 14, 35, 53, 70, 106, 265, 371, 530, 742, 1855, 3710, 5639, 11278, 28195, 39473, 56390, 78946, 197365, 298867, 394730, 597734, 1494335, 2092069, 2988670, 4184138, 10460345, 20920690]

約数ペア:

[(1, 20920690), (2, 10460345), (5, 4184138), (7, 2988670), (10, 2092069), (14, 1494335), (35, 597734), (53, 394730), (70, 298867), (106, 197365), (265, 78946), (371, 56390), (530, 39473), (742, 28195), (1855, 11278), (3710, 5639)]