16807680040

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{9771907}}^1$

素因数の和:9771961

約数の個数: 32

約数和(自身を含む): 38696755680

約数和(自身を除く): 21889075640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 9771907, 19543814, 39087628, 48859535, 78175256, 97719070, 195438140, 390876280, 420192001, 840384002, 1680768004, 2100960005, 3361536008, 4201920010, 8403840020, 16807680040]

約数ペア:

[(1, 16807680040), (2, 8403840020), (4, 4201920010), (5, 3361536008), (8, 2100960005), (10, 1680768004), (20, 840384002), (40, 420192001), (43, 390876280), (86, 195438140), (172, 97719070), (215, 78175256), (344, 48859535), (430, 39087628), (860, 19543814), (1720, 9771907)]