28528225

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{227}}^1\times {\mathrm{457}}^1$

素因数の和:705

約数の個数: 24

約数和(自身を含む): 38845728

約数和(自身を除く): 10317503

約数列:

[1, 5, 11, 25, 55, 227, 275, 457, 1135, 2285, 2497, 5027, 5675, 11425, 12485, 25135, 62425, 103739, 125675, 518695, 1141129, 2593475, 5705645, 28528225]

約数ペア:

[(1, 28528225), (5, 5705645), (11, 2593475), (25, 1141129), (55, 518695), (227, 125675), (275, 103739), (457, 62425), (1135, 25135), (2285, 12485), (2497, 11425), (5027, 5675)]