16780720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19069}}^1$

素因数の和:19093

約数の個数: 40

約数和(自身を含む): 42564240

約数和(自身を除く): 25783520

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 19069, 38138, 76276, 95345, 152552, 190690, 209759, 305104, 381380, 419518, 762760, 839036, 1048795, 1525520, 1678072, 2097590, 3356144, 4195180, 8390360, 16780720]

約数ペア:

[(1, 16780720), (2, 8390360), (4, 4195180), (5, 3356144), (8, 2097590), (10, 1678072), (11, 1525520), (16, 1048795), (20, 839036), (22, 762760), (40, 419518), (44, 381380), (55, 305104), (80, 209759), (88, 190690), (110, 152552), (176, 95345), (220, 76276), (440, 38138), (880, 19069)]