20797320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2441}}^1$

素因数の和:2526

約数の個数: 64

約数和(自身を含む): 63296640

約数和(自身を除く): 42499320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 71, 120, 142, 213, 284, 355, 426, 568, 710, 852, 1065, 1420, 1704, 2130, 2441, 2840, 4260, 4882, 7323, 8520, 9764, 12205, 14646, 19528, 24410, 29292, 36615, 48820, 58584, 73230, 97640, 146460, 173311, 292920, 346622, 519933, 693244, 866555, 1039866, 1386488, 1733110, 2079732, 2599665, 3466220, 4159464, 5199330, 6932440, 10398660, 20797320]

約数ペア:

[(1, 20797320), (2, 10398660), (3, 6932440), (4, 5199330), (5, 4159464), (6, 3466220), (8, 2599665), (10, 2079732), (12, 1733110), (15, 1386488), (20, 1039866), (24, 866555), (30, 693244), (40, 519933), (60, 346622), (71, 292920), (120, 173311), (142, 146460), (213, 97640), (284, 73230), (355, 58584), (426, 48820), (568, 36615), (710, 29292), (852, 24410), (1065, 19528), (1420, 14646), (1704, 12205), (2130, 9764), (2441, 8520), (2840, 7323), (4260, 4882)]