31192040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{70891}}^1$

素因数の和:70913

約数の個数: 32

約数和(自身を含む): 76563360

約数和(自身を除く): 45371320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 70891, 141782, 283564, 354455, 567128, 708910, 779801, 1417820, 1559602, 2835640, 3119204, 3899005, 6238408, 7798010, 15596020, 31192040]

約数ペア:

[(1, 31192040), (2, 15596020), (4, 7798010), (5, 6238408), (8, 3899005), (10, 3119204), (11, 2835640), (20, 1559602), (22, 1417820), (40, 779801), (44, 708910), (55, 567128), (88, 354455), (110, 283564), (220, 141782), (440, 70891)]