80847920

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59447}}^1$

素因数の和:59477

約数の個数: 40

約数和(自身を含む): 199031904

約数和(自身を除く): 118183984

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 59447, 118894, 237788, 297235, 475576, 594470, 951152, 1010599, 1188940, 2021198, 2377880, 4042396, 4755760, 5052995, 8084792, 10105990, 16169584, 20211980, 40423960, 80847920]

約数ペア:

[(1, 80847920), (2, 40423960), (4, 20211980), (5, 16169584), (8, 10105990), (10, 8084792), (16, 5052995), (17, 4755760), (20, 4042396), (34, 2377880), (40, 2021198), (68, 1188940), (80, 1010599), (85, 951152), (136, 594470), (170, 475576), (272, 297235), (340, 237788), (680, 118894), (1360, 59447)]