28409895

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{151}}^1$

素因数の和:312

約数の個数: 48

約数和(自身を含む): 51360192

約数和(自身を除く): 22950297

約数列:

[1, 3, 5, 9, 15, 37, 45, 111, 113, 151, 185, 333, 339, 453, 555, 565, 755, 1017, 1359, 1665, 1695, 2265, 4181, 5085, 5587, 6795, 12543, 16761, 17063, 20905, 27935, 37629, 50283, 51189, 62715, 83805, 85315, 153567, 188145, 251415, 255945, 631331, 767835, 1893993, 3156655, 5681979, 9469965, 28409895]

約数ペア:

[(1, 28409895), (3, 9469965), (5, 5681979), (9, 3156655), (15, 1893993), (37, 767835), (45, 631331), (111, 255945), (113, 251415), (151, 188145), (185, 153567), (333, 85315), (339, 83805), (453, 62715), (555, 51189), (565, 50283), (755, 37629), (1017, 27935), (1359, 20905), (1665, 17063), (1695, 16761), (2265, 12543), (4181, 6795), (5085, 5587)]