30664280

素因数分解:

$2^3\times 5^1\times {\mathrm{397}}^1\times {\mathrm{1931}}^1$

素因数の和:2339

約数の個数: 32

約数和(自身を含む): 69204240

約数和(自身を除く): 38539960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 397, 794, 1588, 1931, 1985, 3176, 3862, 3970, 7724, 7940, 9655, 15448, 15880, 19310, 38620, 77240, 766607, 1533214, 3066428, 3833035, 6132856, 7666070, 15332140, 30664280]

約数ペア:

[(1, 30664280), (2, 15332140), (4, 7666070), (5, 6132856), (8, 3833035), (10, 3066428), (20, 1533214), (40, 766607), (397, 77240), (794, 38620), (1588, 19310), (1931, 15880), (1985, 15448), (3176, 9655), (3862, 7940), (3970, 7724)]