71478440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{162451}}^1$

素因数の和:162473

約数の個数: 32

約数和(自身を含む): 175448160

約数和(自身を除く): 103969720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 162451, 324902, 649804, 812255, 1299608, 1624510, 1786961, 3249020, 3573922, 6498040, 7147844, 8934805, 14295688, 17869610, 35739220, 71478440]

約数ペア:

[(1, 71478440), (2, 35739220), (4, 17869610), (5, 14295688), (8, 8934805), (10, 7147844), (11, 6498040), (20, 3573922), (22, 3249020), (40, 1786961), (44, 1624510), (55, 1299608), (88, 812255), (110, 649804), (220, 324902), (440, 162451)]