1291168780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1151}}^1\times {\mathrm{5099}}^1$

素因数の和:6270

約数の個数: 48

約数和(自身を含む): 2961100800

約数和(自身を除く): 1669932020

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 1151, 2302, 4604, 5099, 5755, 10198, 11510, 12661, 20396, 23020, 25322, 25495, 50644, 50990, 56089, 63305, 101980, 112178, 126610, 224356, 253220, 280445, 560890, 1121780, 5868949, 11737898, 23475796, 29344745, 58689490, 64558439, 117378980, 129116878, 258233756, 322792195, 645584390, 1291168780]

約数ペア:

[(1, 1291168780), (2, 645584390), (4, 322792195), (5, 258233756), (10, 129116878), (11, 117378980), (20, 64558439), (22, 58689490), (44, 29344745), (55, 23475796), (110, 11737898), (220, 5868949), (1151, 1121780), (2302, 560890), (4604, 280445), (5099, 253220), (5755, 224356), (10198, 126610), (11510, 112178), (12661, 101980), (20396, 63305), (23020, 56089), (25322, 50990), (25495, 50644)]