28897455

素因数分解:

$3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{163}}^1\times {\mathrm{223}}^1$

素因数の和:447

約数の個数: 32

約数和(自身を含む): 47609856

約数和(自身を除く): 18712401

約数列:

[1, 3, 5, 15, 53, 159, 163, 223, 265, 489, 669, 795, 815, 1115, 2445, 3345, 8639, 11819, 25917, 35457, 36349, 43195, 59095, 109047, 129585, 177285, 181745, 545235, 1926497, 5779491, 9632485, 28897455]

約数ペア:

[(1, 28897455), (3, 9632485), (5, 5779491), (15, 1926497), (53, 545235), (159, 181745), (163, 177285), (223, 129585), (265, 109047), (489, 59095), (669, 43195), (795, 36349), (815, 35457), (1115, 25917), (2445, 11819), (3345, 8639)]