20462220

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{743}}^1$

素因数の和:781

約数の個数: 120

約数和(自身を含む): 68058144

約数和(自身を除く): 47595924

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 27, 30, 34, 36, 45, 51, 54, 60, 68, 81, 85, 90, 102, 108, 135, 153, 162, 170, 180, 204, 255, 270, 306, 324, 340, 405, 459, 510, 540, 612, 743, 765, 810, 918, 1020, 1377, 1486, 1530, 1620, 1836, 2229, 2295, 2754, 2972, 3060, 3715, 4458, 4590, 5508, 6687, 6885, 7430, 8916, 9180, 11145, 12631, 13374, 13770, 14860, 20061, 22290, 25262, 26748, 27540, 33435, 37893, 40122, 44580, 50524, 60183, 63155, 66870, 75786, 80244, 100305, 113679, 120366, 126310, 133740, 151572, 189465, 200610, 227358, 240732, 252620, 300915, 341037, 378930, 401220, 454716, 568395, 601830, 682074, 757860, 1023111, 1136790, 1203660, 1364148, 1705185, 2046222, 2273580, 3410370, 4092444, 5115555, 6820740, 10231110, 20462220]

約数ペア:

[(1, 20462220), (2, 10231110), (3, 6820740), (4, 5115555), (5, 4092444), (6, 3410370), (9, 2273580), (10, 2046222), (12, 1705185), (15, 1364148), (17, 1203660), (18, 1136790), (20, 1023111), (27, 757860), (30, 682074), (34, 601830), (36, 568395), (45, 454716), (51, 401220), (54, 378930), (60, 341037), (68, 300915), (81, 252620), (85, 240732), (90, 227358), (102, 200610), (108, 189465), (135, 151572), (153, 133740), (162, 126310), (170, 120366), (180, 113679), (204, 100305), (255, 80244), (270, 75786), (306, 66870), (324, 63155), (340, 60183), (405, 50524), (459, 44580), (510, 40122), (540, 37893), (612, 33435), (743, 27540), (765, 26748), (810, 25262), (918, 22290), (1020, 20061), (1377, 14860), (1486, 13770), (1530, 13374), (1620, 12631), (1836, 11145), (2229, 9180), (2295, 8916), (2754, 7430), (2972, 6885), (3060, 6687), (3715, 5508), (4458, 4590)]