1815660040

素因数分解:

$2^3\times 5^1\times {\mathrm{45391501}}^1$

素因数の和:45391512

約数の個数: 16

約数和(自身を含む): 4085235180

約数和(自身を除く): 2269575140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 45391501, 90783002, 181566004, 226957505, 363132008, 453915010, 907830020, 1815660040]

約数ペア:

[(1, 1815660040), (2, 907830020), (4, 453915010), (5, 363132008), (8, 226957505), (10, 181566004), (20, 90783002), (40, 45391501)]