30399640

素因数分解:

$2^3\times 5^1\times {\mathrm{457}}^1\times {\mathrm{1663}}^1$

素因数の和:2131

約数の個数: 32

約数和(自身を含む): 68590080

約数和(自身を除く): 38190440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 457, 914, 1663, 1828, 2285, 3326, 3656, 4570, 6652, 8315, 9140, 13304, 16630, 18280, 33260, 66520, 759991, 1519982, 3039964, 3799955, 6079928, 7599910, 15199820, 30399640]

約数ペア:

[(1, 30399640), (2, 15199820), (4, 7599910), (5, 6079928), (8, 3799955), (10, 3039964), (20, 1519982), (40, 759991), (457, 66520), (914, 33260), (1663, 18280), (1828, 16630), (2285, 13304), (3326, 9140), (3656, 8315), (4570, 6652)]