25299375

素因数分解:

$3^1\times 5^4\times {\mathrm{103}}^1\times {\mathrm{131}}^1$

素因数の和:257

約数の個数: 40

約数和(自身を含む): 42886272

約数和(自身を除く): 17586897

約数列:

[1, 3, 5, 15, 25, 75, 103, 125, 131, 309, 375, 393, 515, 625, 655, 1545, 1875, 1965, 2575, 3275, 7725, 9825, 12875, 13493, 16375, 38625, 40479, 49125, 64375, 67465, 81875, 193125, 202395, 245625, 337325, 1011975, 1686625, 5059875, 8433125, 25299375]

約数ペア:

[(1, 25299375), (3, 8433125), (5, 5059875), (15, 1686625), (25, 1011975), (75, 337325), (103, 245625), (125, 202395), (131, 193125), (309, 81875), (375, 67465), (393, 64375), (515, 49125), (625, 40479), (655, 38625), (1545, 16375), (1875, 13493), (1965, 12875), (2575, 9825), (3275, 7725)]