28369620

素因数分解:

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

素因数の和:809

約数の個数: 54

約数和(自身を含む): 86271822

約数和(自身を除く): 57902202

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 397, 794, 1191, 1588, 1985, 2382, 3573, 3970, 4764, 5955, 7146, 7940, 11910, 14292, 17865, 23820, 35730, 71460, 157609, 315218, 472827, 630436, 788045, 945654, 1418481, 1576090, 1891308, 2364135, 2836962, 3152180, 4728270, 5673924, 7092405, 9456540, 14184810, 28369620]

約数ペア:

[(1, 28369620), (2, 14184810), (3, 9456540), (4, 7092405), (5, 5673924), (6, 4728270), (9, 3152180), (10, 2836962), (12, 2364135), (15, 1891308), (18, 1576090), (20, 1418481), (30, 945654), (36, 788045), (45, 630436), (60, 472827), (90, 315218), (180, 157609), (397, 71460), (794, 35730), (1191, 23820), (1588, 17865), (1985, 14292), (2382, 11910), (3573, 7940), (3970, 7146), (4764, 5955)]