1145177720

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{665801}}^1$

素因数の和:665855

約数の個数: 32

約数和(自身を含む): 2636575920

約数和(自身を除く): 1491398200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 665801, 1331602, 2663204, 3329005, 5326408, 6658010, 13316020, 26632040, 28629443, 57258886, 114517772, 143147215, 229035544, 286294430, 572588860, 1145177720]

約数ペア:

[(1, 1145177720), (2, 572588860), (4, 286294430), (5, 229035544), (8, 143147215), (10, 114517772), (20, 57258886), (40, 28629443), (43, 26632040), (86, 13316020), (172, 6658010), (215, 5326408), (344, 3329005), (430, 2663204), (860, 1331602), (1720, 665801)]