81498520

素因数分解:

$2^3\times 5^1\times {\mathrm{751}}^1\times {\mathrm{2713}}^1$

素因数の和:3475

約数の個数: 32

約数和(自身を含む): 183683520

約数和(自身を除く): 102185000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 751, 1502, 2713, 3004, 3755, 5426, 6008, 7510, 10852, 13565, 15020, 21704, 27130, 30040, 54260, 108520, 2037463, 4074926, 8149852, 10187315, 16299704, 20374630, 40749260, 81498520]

約数ペア:

[(1, 81498520), (2, 40749260), (4, 20374630), (5, 16299704), (8, 10187315), (10, 8149852), (20, 4074926), (40, 2037463), (751, 108520), (1502, 54260), (2713, 30040), (3004, 27130), (3755, 21704), (5426, 15020), (6008, 13565), (7510, 10852)]