19807740

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{12227}}^1$

素因数の和:12248

約数の個数: 60

約数和(自身を含む): 62142696

約数和(自身を除く): 42334956

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, 12227, 24454, 36681, 48908, 61135, 73362, 110043, 122270, 146724, 183405, 220086, 244540, 330129, 366810, 440172, 550215, 660258, 733620, 990387, 1100430, 1320516, 1650645, 1980774, 2200860, 3301290, 3961548, 4951935, 6602580, 9903870, 19807740]

約数ペア:

[(1, 19807740), (2, 9903870), (3, 6602580), (4, 4951935), (5, 3961548), (6, 3301290), (9, 2200860), (10, 1980774), (12, 1650645), (15, 1320516), (18, 1100430), (20, 990387), (27, 733620), (30, 660258), (36, 550215), (45, 440172), (54, 366810), (60, 330129), (81, 244540), (90, 220086), (108, 183405), (135, 146724), (162, 122270), (180, 110043), (270, 73362), (324, 61135), (405, 48908), (540, 36681), (810, 24454), (1620, 12227)]