28818180

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{17789}}^1$

素因数の和:17810

約数の個数: 60

約数和(自身を含む): 90408780

約数和(自身を除く): 61590600

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 17789, 35578, 53367, 71156, 88945, 106734, 160101, 177890, 213468, 266835, 320202, 355780, 480303, 533670, 640404, 800505, 960606, 1067340, 1440909, 1601010, 1921212, 2401515, 2881818, 3202020, 4803030, 5763636, 7204545, 9606060, 14409090, 28818180]

約数ペア:

[(1, 28818180), (2, 14409090), (3, 9606060), (4, 7204545), (5, 5763636), (6, 4803030), (9, 3202020), (10, 2881818), (12, 2401515), (15, 1921212), (18, 1601010), (20, 1440909), (27, 1067340), (30, 960606), (36, 800505), (45, 640404), (54, 533670), (60, 480303), (81, 355780), (90, 320202), (108, 266835), (135, 213468), (162, 177890), (180, 160101), (270, 106734), (324, 88945), (405, 71156), (540, 53367), (810, 35578), (1620, 17789)]