31685625

素因数分解:

$3^2\times 5^4\times {\mathrm{43}}^1\times {\mathrm{131}}^1$

素因数の和:200

約数の個数: 60

約数和(自身を含む): 58968624

約数和(自身を除く): 27282999

約数列:

[1, 3, 5, 9, 15, 25, 43, 45, 75, 125, 129, 131, 215, 225, 375, 387, 393, 625, 645, 655, 1075, 1125, 1179, 1875, 1935, 1965, 3225, 3275, 5375, 5625, 5633, 5895, 9675, 9825, 16125, 16375, 16899, 26875, 28165, 29475, 48375, 49125, 50697, 80625, 81875, 84495, 140825, 147375, 241875, 245625, 253485, 422475, 704125, 736875, 1267425, 2112375, 3520625, 6337125, 10561875, 31685625]

約数ペア:

[(1, 31685625), (3, 10561875), (5, 6337125), (9, 3520625), (15, 2112375), (25, 1267425), (43, 736875), (45, 704125), (75, 422475), (125, 253485), (129, 245625), (131, 241875), (215, 147375), (225, 140825), (375, 84495), (387, 81875), (393, 80625), (625, 50697), (645, 49125), (655, 48375), (1075, 29475), (1125, 28165), (1179, 26875), (1875, 16899), (1935, 16375), (1965, 16125), (3225, 9825), (3275, 9675), (5375, 5895), (5625, 5633)]