80139040

素因数分解:

$2^5\times 5^1\times {\mathrm{37}}^1\times {\mathrm{13537}}^1$

素因数の和:13589

約数の個数: 48

約数和(自身を含む): 194459832

約数和(自身を除く): 114320792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 74, 80, 148, 160, 185, 296, 370, 592, 740, 1184, 1480, 2960, 5920, 13537, 27074, 54148, 67685, 108296, 135370, 216592, 270740, 433184, 500869, 541480, 1001738, 1082960, 2003476, 2165920, 2504345, 4006952, 5008690, 8013904, 10017380, 16027808, 20034760, 40069520, 80139040]

約数ペア:

[(1, 80139040), (2, 40069520), (4, 20034760), (5, 16027808), (8, 10017380), (10, 8013904), (16, 5008690), (20, 4006952), (32, 2504345), (37, 2165920), (40, 2003476), (74, 1082960), (80, 1001738), (148, 541480), (160, 500869), (185, 433184), (296, 270740), (370, 216592), (592, 135370), (740, 108296), (1184, 67685), (1480, 54148), (2960, 27074), (5920, 13537)]