20437740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{6679}}^1$

素因数の和:6711

約数の個数: 72

約数和(自身を含む): 65651040

約数和(自身を除く): 45213300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 85, 90, 102, 153, 170, 180, 204, 255, 306, 340, 510, 612, 765, 1020, 1530, 3060, 6679, 13358, 20037, 26716, 33395, 40074, 60111, 66790, 80148, 100185, 113543, 120222, 133580, 200370, 227086, 240444, 300555, 340629, 400740, 454172, 567715, 601110, 681258, 1021887, 1135430, 1202220, 1362516, 1703145, 2043774, 2270860, 3406290, 4087548, 5109435, 6812580, 10218870, 20437740]

約数ペア:

[(1, 20437740), (2, 10218870), (3, 6812580), (4, 5109435), (5, 4087548), (6, 3406290), (9, 2270860), (10, 2043774), (12, 1703145), (15, 1362516), (17, 1202220), (18, 1135430), (20, 1021887), (30, 681258), (34, 601110), (36, 567715), (45, 454172), (51, 400740), (60, 340629), (68, 300555), (85, 240444), (90, 227086), (102, 200370), (153, 133580), (170, 120222), (180, 113543), (204, 100185), (255, 80148), (306, 66790), (340, 60111), (510, 40074), (612, 33395), (765, 26716), (1020, 20037), (1530, 13358), (3060, 6679)]