18981540

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{11717}}^1$

素因数の和:11738

約数の個数: 60

約数和(自身を含む): 59550876

約数和(自身を除く): 40569336

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, 11717, 23434, 35151, 46868, 58585, 70302, 105453, 117170, 140604, 175755, 210906, 234340, 316359, 351510, 421812, 527265, 632718, 703020, 949077, 1054530, 1265436, 1581795, 1898154, 2109060, 3163590, 3796308, 4745385, 6327180, 9490770, 18981540]

約数ペア:

[(1, 18981540), (2, 9490770), (3, 6327180), (4, 4745385), (5, 3796308), (6, 3163590), (9, 2109060), (10, 1898154), (12, 1581795), (15, 1265436), (18, 1054530), (20, 949077), (27, 703020), (30, 632718), (36, 527265), (45, 421812), (54, 351510), (60, 316359), (81, 234340), (90, 210906), (108, 175755), (135, 140604), (162, 117170), (180, 105453), (270, 70302), (324, 58585), (405, 46868), (540, 35151), (810, 23434), (1620, 11717)]