20840730

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{701}}^1\times {\mathrm{991}}^1$

素因数の和:1702

約数の個数: 32

約数和(自身を含む): 50139648

約数和(自身を除く): 29298918

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 701, 991, 1402, 1982, 2103, 2973, 3505, 4206, 4955, 5946, 7010, 9910, 10515, 14865, 21030, 29730, 694691, 1389382, 2084073, 3473455, 4168146, 6946910, 10420365, 20840730]

約数ペア:

[(1, 20840730), (2, 10420365), (3, 6946910), (5, 4168146), (6, 3473455), (10, 2084073), (15, 1389382), (30, 694691), (701, 29730), (991, 21030), (1402, 14865), (1982, 10515), (2103, 9910), (2973, 7010), (3505, 5946), (4206, 4955)]