127820080

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{509}}^1$

素因数の和:638

約数の個数: 80

約数和(自身を含む): 308864160

約数和(自身を除く): 181044080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 73, 80, 86, 146, 172, 215, 292, 344, 365, 430, 509, 584, 688, 730, 860, 1018, 1168, 1460, 1720, 2036, 2545, 2920, 3139, 3440, 4072, 5090, 5840, 6278, 8144, 10180, 12556, 15695, 20360, 21887, 25112, 31390, 37157, 40720, 43774, 50224, 62780, 74314, 87548, 109435, 125560, 148628, 175096, 185785, 218870, 251120, 297256, 350192, 371570, 437740, 594512, 743140, 875480, 1486280, 1597751, 1750960, 2972560, 3195502, 6391004, 7988755, 12782008, 15977510, 25564016, 31955020, 63910040, 127820080]

約数ペア:

[(1, 127820080), (2, 63910040), (4, 31955020), (5, 25564016), (8, 15977510), (10, 12782008), (16, 7988755), (20, 6391004), (40, 3195502), (43, 2972560), (73, 1750960), (80, 1597751), (86, 1486280), (146, 875480), (172, 743140), (215, 594512), (292, 437740), (344, 371570), (365, 350192), (430, 297256), (509, 251120), (584, 218870), (688, 185785), (730, 175096), (860, 148628), (1018, 125560), (1168, 109435), (1460, 87548), (1720, 74314), (2036, 62780), (2545, 50224), (2920, 43774), (3139, 40720), (3440, 37157), (4072, 31390), (5090, 25112), (5840, 21887), (6278, 20360), (8144, 15695), (10180, 12556)]