19882520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{4177}}^1$

素因数の和:4212

約数の個数: 64

約数和(自身を含む): 54146880

約数和(自身を除く): 34264360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 56, 68, 70, 85, 119, 136, 140, 170, 238, 280, 340, 476, 595, 680, 952, 1190, 2380, 4177, 4760, 8354, 16708, 20885, 29239, 33416, 41770, 58478, 71009, 83540, 116956, 142018, 146195, 167080, 233912, 284036, 292390, 355045, 497063, 568072, 584780, 710090, 994126, 1169560, 1420180, 1988252, 2485315, 2840360, 3976504, 4970630, 9941260, 19882520]

約数ペア:

[(1, 19882520), (2, 9941260), (4, 4970630), (5, 3976504), (7, 2840360), (8, 2485315), (10, 1988252), (14, 1420180), (17, 1169560), (20, 994126), (28, 710090), (34, 584780), (35, 568072), (40, 497063), (56, 355045), (68, 292390), (70, 284036), (85, 233912), (119, 167080), (136, 146195), (140, 142018), (170, 116956), (238, 83540), (280, 71009), (340, 58478), (476, 41770), (595, 33416), (680, 29239), (952, 20885), (1190, 16708), (2380, 8354), (4177, 4760)]