25940000

素因数分解:

$2^5\times 5^4\times {\mathrm{1297}}^1$

素因数の和:1327

約数の個数: 60

約数和(自身を含む): 63865494

約数和(自身を除く): 37925494

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 625, 800, 1000, 1250, 1297, 2000, 2500, 2594, 4000, 5000, 5188, 6485, 10000, 10376, 12970, 20000, 20752, 25940, 32425, 41504, 51880, 64850, 103760, 129700, 162125, 207520, 259400, 324250, 518800, 648500, 810625, 1037600, 1297000, 1621250, 2594000, 3242500, 5188000, 6485000, 12970000, 25940000]

約数ペア:

[(1, 25940000), (2, 12970000), (4, 6485000), (5, 5188000), (8, 3242500), (10, 2594000), (16, 1621250), (20, 1297000), (25, 1037600), (32, 810625), (40, 648500), (50, 518800), (80, 324250), (100, 259400), (125, 207520), (160, 162125), (200, 129700), (250, 103760), (400, 64850), (500, 51880), (625, 41504), (800, 32425), (1000, 25940), (1250, 20752), (1297, 20000), (2000, 12970), (2500, 10376), (2594, 10000), (4000, 6485), (5000, 5188)]