81102500

素因数分解:

$2^2\times 5^4\times {\mathrm{32441}}^1$

素因数の和:32465

約数の個数: 30

約数和(自身を含む): 177360414

約数和(自身を除く): 96257914

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 625, 1250, 2500, 32441, 64882, 129764, 162205, 324410, 648820, 811025, 1622050, 3244100, 4055125, 8110250, 16220500, 20275625, 40551250, 81102500]

約数ペア:

[(1, 81102500), (2, 40551250), (4, 20275625), (5, 16220500), (10, 8110250), (20, 4055125), (25, 3244100), (50, 1622050), (100, 811025), (125, 648820), (250, 324410), (500, 162205), (625, 129764), (1250, 64882), (2500, 32441)]