72004880

素因数分解:

$2^4\times 5^1\times {\mathrm{900061}}^1$

素因数の和:900074

約数の個数: 20

約数和(自身を含む): 167411532

約数和(自身を除く): 95406652

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 900061, 1800122, 3600244, 4500305, 7200488, 9000610, 14400976, 18001220, 36002440, 72004880]

約数ペア:

[(1, 72004880), (2, 36002440), (4, 18001220), (5, 14400976), (8, 9000610), (10, 7200488), (16, 4500305), (20, 3600244), (40, 1800122), (80, 900061)]