128372500

素因数分解:

$2^2\times 5^4\times {\mathrm{51349}}^1$

素因数の和:51373

約数の個数: 30

約数和(自身を含む): 280730450

約数和(自身を除く): 152357950

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 625, 1250, 2500, 51349, 102698, 205396, 256745, 513490, 1026980, 1283725, 2567450, 5134900, 6418625, 12837250, 25674500, 32093125, 64186250, 128372500]

約数ペア:

[(1, 128372500), (2, 64186250), (4, 32093125), (5, 25674500), (10, 12837250), (20, 6418625), (25, 5134900), (50, 2567450), (100, 1283725), (125, 1026980), (250, 513490), (500, 256745), (625, 205396), (1250, 102698), (2500, 51349)]