20168880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{4423}}^1$

素因数の和:4458

約数の個数: 80

約数和(自身を含む): 65829120

約数和(自身を除く): 45660240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 152, 190, 228, 240, 285, 304, 380, 456, 570, 760, 912, 1140, 1520, 2280, 4423, 4560, 8846, 13269, 17692, 22115, 26538, 35384, 44230, 53076, 66345, 70768, 84037, 88460, 106152, 132690, 168074, 176920, 212304, 252111, 265380, 336148, 353840, 420185, 504222, 530760, 672296, 840370, 1008444, 1061520, 1260555, 1344592, 1680740, 2016888, 2521110, 3361480, 4033776, 5042220, 6722960, 10084440, 20168880]

約数ペア:

[(1, 20168880), (2, 10084440), (3, 6722960), (4, 5042220), (5, 4033776), (6, 3361480), (8, 2521110), (10, 2016888), (12, 1680740), (15, 1344592), (16, 1260555), (19, 1061520), (20, 1008444), (24, 840370), (30, 672296), (38, 530760), (40, 504222), (48, 420185), (57, 353840), (60, 336148), (76, 265380), (80, 252111), (95, 212304), (114, 176920), (120, 168074), (152, 132690), (190, 106152), (228, 88460), (240, 84037), (285, 70768), (304, 66345), (380, 53076), (456, 44230), (570, 35384), (760, 26538), (912, 22115), (1140, 17692), (1520, 13269), (2280, 8846), (4423, 4560)]