20907320

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{10667}}^1$

素因数の和:10692

約数の個数: 48

約数和(自身を含む): 54726840

約数和(自身を除く): 33819520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 10667, 21334, 42668, 53335, 74669, 85336, 106670, 149338, 213340, 298676, 373345, 426680, 522683, 597352, 746690, 1045366, 1493380, 2090732, 2613415, 2986760, 4181464, 5226830, 10453660, 20907320]

約数ペア:

[(1, 20907320), (2, 10453660), (4, 5226830), (5, 4181464), (7, 2986760), (8, 2613415), (10, 2090732), (14, 1493380), (20, 1045366), (28, 746690), (35, 597352), (40, 522683), (49, 426680), (56, 373345), (70, 298676), (98, 213340), (140, 149338), (196, 106670), (245, 85336), (280, 74669), (392, 53335), (490, 42668), (980, 21334), (1960, 10667)]