20147986760

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{45790879}}^1$

素因数の和:45790901

約数の個数: 32

約数和(自身を含む): 49454150400

約数和(自身を除く): 29306163640

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 45790879, 91581758, 183163516, 228954395, 366327032, 457908790, 503699669, 915817580, 1007399338, 1831635160, 2014798676, 2518498345, 4029597352, 5036996690, 10073993380, 20147986760]

約数ペア:

[(1, 20147986760), (2, 10073993380), (4, 5036996690), (5, 4029597352), (8, 2518498345), (10, 2014798676), (11, 1831635160), (20, 1007399338), (22, 915817580), (40, 503699669), (44, 457908790), (55, 366327032), (88, 228954395), (110, 183163516), (220, 91581758), (440, 45790879)]