8915180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{809}}^1$

素因数の和:866

約数の個数: 48

約数和(自身を含む): 20412000

約数和(自身を除く): 11496820

約数列:

[1, 2, 4, 5, 10, 19, 20, 29, 38, 58, 76, 95, 116, 145, 190, 290, 380, 551, 580, 809, 1102, 1618, 2204, 2755, 3236, 4045, 5510, 8090, 11020, 15371, 16180, 23461, 30742, 46922, 61484, 76855, 93844, 117305, 153710, 234610, 307420, 445759, 469220, 891518, 1783036, 2228795, 4457590, 8915180]

約数ペア:

[(1, 8915180), (2, 4457590), (4, 2228795), (5, 1783036), (10, 891518), (19, 469220), (20, 445759), (29, 307420), (38, 234610), (58, 153710), (76, 117305), (95, 93844), (116, 76855), (145, 61484), (190, 46922), (290, 30742), (380, 23461), (551, 16180), (580, 15371), (809, 11020), (1102, 8090), (1618, 5510), (2204, 4045), (2755, 3236)]