80435320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{287269}}^1$

素因数の和:287287

約数の個数: 32

約数和(自身を含む): 206834400

約数和(自身を除く): 126399080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 287269, 574538, 1149076, 1436345, 2010883, 2298152, 2872690, 4021766, 5745380, 8043532, 10054415, 11490760, 16087064, 20108830, 40217660, 80435320]

約数ペア:

[(1, 80435320), (2, 40217660), (4, 20108830), (5, 16087064), (7, 11490760), (8, 10054415), (10, 8043532), (14, 5745380), (20, 4021766), (28, 2872690), (35, 2298152), (40, 2010883), (56, 1436345), (70, 1149076), (140, 574538), (280, 287269)]