31439320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71453}}^1$

素因数の和:71475

約数の個数: 32

約数和(自身を含む): 77170320

約数和(自身を除く): 45731000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 71453, 142906, 285812, 357265, 571624, 714530, 785983, 1429060, 1571966, 2858120, 3143932, 3929915, 6287864, 7859830, 15719660, 31439320]

約数ペア:

[(1, 31439320), (2, 15719660), (4, 7859830), (5, 6287864), (8, 3929915), (10, 3143932), (11, 2858120), (20, 1571966), (22, 1429060), (40, 785983), (44, 714530), (55, 571624), (88, 357265), (110, 285812), (220, 142906), (440, 71453)]