661093880

素因数分解:

$2^3\times 5^1\times {\mathrm{16527347}}^1$

素因数の和:16527358

約数の個数: 16

約数和(自身を含む): 1487461320

約数和(自身を除く): 826367440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 16527347, 33054694, 66109388, 82636735, 132218776, 165273470, 330546940, 661093880]

約数ペア:

[(1, 661093880), (2, 330546940), (4, 165273470), (5, 132218776), (8, 82636735), (10, 66109388), (20, 33054694), (40, 16527347)]