39989320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{251}}^1\times {\mathrm{569}}^1$

素因数の和:838

約数の個数: 64

約数和(自身を含む): 103420800

約数和(自身を除く): 63431480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 251, 280, 502, 569, 1004, 1138, 1255, 1757, 2008, 2276, 2510, 2845, 3514, 3983, 4552, 5020, 5690, 7028, 7966, 8785, 10040, 11380, 14056, 15932, 17570, 19915, 22760, 31864, 35140, 39830, 70280, 79660, 142819, 159320, 285638, 571276, 714095, 999733, 1142552, 1428190, 1999466, 2856380, 3998932, 4998665, 5712760, 7997864, 9997330, 19994660, 39989320]

約数ペア:

[(1, 39989320), (2, 19994660), (4, 9997330), (5, 7997864), (7, 5712760), (8, 4998665), (10, 3998932), (14, 2856380), (20, 1999466), (28, 1428190), (35, 1142552), (40, 999733), (56, 714095), (70, 571276), (140, 285638), (251, 159320), (280, 142819), (502, 79660), (569, 70280), (1004, 39830), (1138, 35140), (1255, 31864), (1757, 22760), (2008, 19915), (2276, 17570), (2510, 15932), (2845, 14056), (3514, 11380), (3983, 10040), (4552, 8785), (5020, 7966), (5690, 7028)]