28737075

素因数分解:

$3^1\times 5^2\times {\mathrm{619}}^2$

素因数の和:1251

約数の個数: 18

約数和(自身を含む): 47588844

約数和(自身を除く): 18851769

約数列:

[1, 3, 5, 15, 25, 75, 619, 1857, 3095, 9285, 15475, 46425, 383161, 1149483, 1915805, 5747415, 9579025, 28737075]

約数ペア:

[(1, 28737075), (3, 9579025), (5, 5747415), (15, 1915805), (25, 1149483), (75, 383161), (619, 46425), (1857, 15475), (3095, 9285)]