30506920

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{6997}}^1$

素因数の和:7117

約数の個数: 32

約数和(自身を含む): 69280200

約数和(自身を除く): 38773280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 6997, 13994, 27988, 34985, 55976, 69970, 139940, 279880, 762673, 1525346, 3050692, 3813365, 6101384, 7626730, 15253460, 30506920]

約数ペア:

[(1, 30506920), (2, 15253460), (4, 7626730), (5, 6101384), (8, 3813365), (10, 3050692), (20, 1525346), (40, 762673), (109, 279880), (218, 139940), (436, 69970), (545, 55976), (872, 34985), (1090, 27988), (2180, 13994), (4360, 6997)]