278736980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{4409}}^1$

素因数の和:4556

約数の個数: 48

約数和(自身を含む): 611226000

約数和(自身を除く): 332489020

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 109, 116, 145, 218, 290, 436, 545, 580, 1090, 2180, 3161, 4409, 6322, 8818, 12644, 15805, 17636, 22045, 31610, 44090, 63220, 88180, 127861, 255722, 480581, 511444, 639305, 961162, 1278610, 1922324, 2402905, 2557220, 4805810, 9611620, 13936849, 27873698, 55747396, 69684245, 139368490, 278736980]

約数ペア:

[(1, 278736980), (2, 139368490), (4, 69684245), (5, 55747396), (10, 27873698), (20, 13936849), (29, 9611620), (58, 4805810), (109, 2557220), (116, 2402905), (145, 1922324), (218, 1278610), (290, 961162), (436, 639305), (545, 511444), (580, 480581), (1090, 255722), (2180, 127861), (3161, 88180), (4409, 63220), (6322, 44090), (8818, 31610), (12644, 22045), (15805, 17636)]