389629540

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{3083}}^1$

素因数の和:3252

約数の個数: 48

約数和(自身を含む): 839341440

約数和(自身を除く): 449711900

約数列:

[1, 2, 4, 5, 10, 20, 71, 89, 142, 178, 284, 355, 356, 445, 710, 890, 1420, 1780, 3083, 6166, 6319, 12332, 12638, 15415, 25276, 30830, 31595, 61660, 63190, 126380, 218893, 274387, 437786, 548774, 875572, 1094465, 1097548, 1371935, 2188930, 2743870, 4377860, 5487740, 19481477, 38962954, 77925908, 97407385, 194814770, 389629540]

約数ペア:

[(1, 389629540), (2, 194814770), (4, 97407385), (5, 77925908), (10, 38962954), (20, 19481477), (71, 5487740), (89, 4377860), (142, 2743870), (178, 2188930), (284, 1371935), (355, 1097548), (356, 1094465), (445, 875572), (710, 548774), (890, 437786), (1420, 274387), (1780, 218893), (3083, 126380), (6166, 63190), (6319, 61660), (12332, 31595), (12638, 30830), (15415, 25276)]