28789875

素因数分解:

$3^2\times 5^3\times {\mathrm{157}}^1\times {\mathrm{163}}^1$

素因数の和:341

約数の個数: 48

約数和(自身を含む): 52549536

約数和(自身を除く): 23759661

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 125, 157, 163, 225, 375, 471, 489, 785, 815, 1125, 1413, 1467, 2355, 2445, 3925, 4075, 7065, 7335, 11775, 12225, 19625, 20375, 25591, 35325, 36675, 58875, 61125, 76773, 127955, 176625, 183375, 230319, 383865, 639775, 1151595, 1919325, 3198875, 5757975, 9596625, 28789875]

約数ペア:

[(1, 28789875), (3, 9596625), (5, 5757975), (9, 3198875), (15, 1919325), (25, 1151595), (45, 639775), (75, 383865), (125, 230319), (157, 183375), (163, 176625), (225, 127955), (375, 76773), (471, 61125), (489, 58875), (785, 36675), (815, 35325), (1125, 25591), (1413, 20375), (1467, 19625), (2355, 12225), (2445, 11775), (3925, 7335), (4075, 7065)]