20028870

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{313}}^1$

素因数の和:411

約数の個数: 80

約数和(自身を含む): 54711360

約数和(自身を除く): 34682490

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 79, 81, 90, 135, 158, 162, 237, 270, 313, 395, 405, 474, 626, 711, 790, 810, 939, 1185, 1422, 1565, 1878, 2133, 2370, 2817, 3130, 3555, 4266, 4695, 5634, 6399, 7110, 8451, 9390, 10665, 12798, 14085, 16902, 21330, 24727, 25353, 28170, 31995, 42255, 49454, 50706, 63990, 74181, 84510, 123635, 126765, 148362, 222543, 247270, 253530, 370905, 445086, 667629, 741810, 1112715, 1335258, 2002887, 2225430, 3338145, 4005774, 6676290, 10014435, 20028870]

約数ペア:

[(1, 20028870), (2, 10014435), (3, 6676290), (5, 4005774), (6, 3338145), (9, 2225430), (10, 2002887), (15, 1335258), (18, 1112715), (27, 741810), (30, 667629), (45, 445086), (54, 370905), (79, 253530), (81, 247270), (90, 222543), (135, 148362), (158, 126765), (162, 123635), (237, 84510), (270, 74181), (313, 63990), (395, 50706), (405, 49454), (474, 42255), (626, 31995), (711, 28170), (790, 25353), (810, 24727), (939, 21330), (1185, 16902), (1422, 14085), (1565, 12798), (1878, 10665), (2133, 9390), (2370, 8451), (2817, 7110), (3130, 6399), (3555, 5634), (4266, 4695)]