28105020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{156139}}^1$

素因数の和:156154

約数の個数: 36

約数和(自身を含む): 85252440

約数和(自身を除く): 57147420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 156139, 312278, 468417, 624556, 780695, 936834, 1405251, 1561390, 1873668, 2342085, 2810502, 3122780, 4684170, 5621004, 7026255, 9368340, 14052510, 28105020]

約数ペア:

[(1, 28105020), (2, 14052510), (3, 9368340), (4, 7026255), (5, 5621004), (6, 4684170), (9, 3122780), (10, 2810502), (12, 2342085), (15, 1873668), (18, 1561390), (20, 1405251), (30, 936834), (36, 780695), (45, 624556), (60, 468417), (90, 312278), (180, 156139)]