138794750

素因数分解:

$2^1\times 5^3\times {\mathrm{31}}^1\times {\mathrm{17909}}^1$

素因数の和:17957

約数の個数: 32

約数和(自身を含む): 268220160

約数和(自身を除く): 129425410

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 125, 155, 250, 310, 775, 1550, 3875, 7750, 17909, 35818, 89545, 179090, 447725, 555179, 895450, 1110358, 2238625, 2775895, 4477250, 5551790, 13879475, 27758950, 69397375, 138794750]

約数ペア:

[(1, 138794750), (2, 69397375), (5, 27758950), (10, 13879475), (25, 5551790), (31, 4477250), (50, 2775895), (62, 2238625), (125, 1110358), (155, 895450), (250, 555179), (310, 447725), (775, 179090), (1550, 89545), (3875, 35818), (7750, 17909)]