20207320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{72169}}^1$

素因数の和:72187

約数の個数: 32

約数和(自身を含む): 51962400

約数和(自身を除く): 31755080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 72169, 144338, 288676, 360845, 505183, 577352, 721690, 1010366, 1443380, 2020732, 2525915, 2886760, 4041464, 5051830, 10103660, 20207320]

約数ペア:

[(1, 20207320), (2, 10103660), (4, 5051830), (5, 4041464), (7, 2886760), (8, 2525915), (10, 2020732), (14, 1443380), (20, 1010366), (28, 721690), (35, 577352), (40, 505183), (56, 360845), (70, 288676), (140, 144338), (280, 72169)]