199048978

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{1997}}^1$

素因数の和:2122

約数の個数: 32

約数和(自身を含む): 327032640

約数和(自身を除く): 127983662

約数列:

[1, 2, 19, 38, 43, 61, 86, 122, 817, 1159, 1634, 1997, 2318, 2623, 3994, 5246, 37943, 49837, 75886, 85871, 99674, 121817, 171742, 243634, 1631549, 2314523, 3263098, 4629046, 5238131, 10476262, 99524489, 199048978]

約数ペア:

[(1, 199048978), (2, 99524489), (19, 10476262), (38, 5238131), (43, 4629046), (61, 3263098), (86, 2314523), (122, 1631549), (817, 243634), (1159, 171742), (1634, 121817), (1997, 99674), (2318, 85871), (2623, 75886), (3994, 49837), (5246, 37943)]