811804760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1561163}}^1$

素因数の和:1561187

約数の個数: 32

約数和(自身を含む): 1967066640

約数和(自身を除く): 1155261880

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 1561163, 3122326, 6244652, 7805815, 12489304, 15611630, 20295119, 31223260, 40590238, 62446520, 81180476, 101475595, 162360952, 202951190, 405902380, 811804760]

約数ペア:

[(1, 811804760), (2, 405902380), (4, 202951190), (5, 162360952), (8, 101475595), (10, 81180476), (13, 62446520), (20, 40590238), (26, 31223260), (40, 20295119), (52, 15611630), (65, 12489304), (104, 7805815), (130, 6244652), (260, 3122326), (520, 1561163)]