220757320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{788419}}^1$

素因数の和:788437

約数の個数: 32

約数和(自身を含む): 567662400

約数和(自身を除く): 346905080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 788419, 1576838, 3153676, 3942095, 5518933, 6307352, 7884190, 11037866, 15768380, 22075732, 27594665, 31536760, 44151464, 55189330, 110378660, 220757320]

約数ペア:

[(1, 220757320), (2, 110378660), (4, 55189330), (5, 44151464), (7, 31536760), (8, 27594665), (10, 22075732), (14, 15768380), (20, 11037866), (28, 7884190), (35, 6307352), (40, 5518933), (56, 3942095), (70, 3153676), (140, 1576838), (280, 788419)]