64991540

素因数分解:

$2^2\times 5^1\times {\mathrm{751}}^1\times {\mathrm{4327}}^1$

素因数の和:5087

約数の個数: 24

約数和(自身を含む): 136695552

約数和(自身を除く): 71704012

約数列:

[1, 2, 4, 5, 10, 20, 751, 1502, 3004, 3755, 4327, 7510, 8654, 15020, 17308, 21635, 43270, 86540, 3249577, 6499154, 12998308, 16247885, 32495770, 64991540]

約数ペア:

[(1, 64991540), (2, 32495770), (4, 16247885), (5, 12998308), (10, 6499154), (20, 3249577), (751, 86540), (1502, 43270), (3004, 21635), (3755, 17308), (4327, 15020), (7510, 8654)]