266957240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{606721}}^1$

素因数の和:606743

約数の個数: 32

約数和(自身を含む): 655259760

約数和(自身を除く): 388302520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 606721, 1213442, 2426884, 3033605, 4853768, 6067210, 6673931, 12134420, 13347862, 24268840, 26695724, 33369655, 53391448, 66739310, 133478620, 266957240]

約数ペア:

[(1, 266957240), (2, 133478620), (4, 66739310), (5, 53391448), (8, 33369655), (10, 26695724), (11, 24268840), (20, 13347862), (22, 12134420), (40, 6673931), (44, 6067210), (55, 4853768), (88, 3033605), (110, 2426884), (220, 1213442), (440, 606721)]