81090800

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{28961}}^1$

素因数の和:28986

約数の個数: 60

約数和(自身を含む): 222659856

約数和(自身を除く): 141569056

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 50, 56, 70, 80, 100, 112, 140, 175, 200, 280, 350, 400, 560, 700, 1400, 2800, 28961, 57922, 115844, 144805, 202727, 231688, 289610, 405454, 463376, 579220, 724025, 810908, 1013635, 1158440, 1448050, 1621816, 2027270, 2316880, 2896100, 3243632, 4054540, 5068175, 5792200, 8109080, 10136350, 11584400, 16218160, 20272700, 40545400, 81090800]

約数ペア:

[(1, 81090800), (2, 40545400), (4, 20272700), (5, 16218160), (7, 11584400), (8, 10136350), (10, 8109080), (14, 5792200), (16, 5068175), (20, 4054540), (25, 3243632), (28, 2896100), (35, 2316880), (40, 2027270), (50, 1621816), (56, 1448050), (70, 1158440), (80, 1013635), (100, 810908), (112, 724025), (140, 579220), (175, 463376), (200, 405454), (280, 289610), (350, 231688), (400, 202727), (560, 144805), (700, 115844), (1400, 57922), (2800, 28961)]