278839695

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{47543}}^1$

素因数の和:47591

約数の個数: 32

約数和(自身を含む): 492936192

約数和(自身を除く): 214096497

約数列:

[1, 3, 5, 15, 17, 23, 51, 69, 85, 115, 255, 345, 391, 1173, 1955, 5865, 47543, 142629, 237715, 713145, 808231, 1093489, 2424693, 3280467, 4041155, 5467445, 12123465, 16402335, 18589313, 55767939, 92946565, 278839695]

約数ペア:

[(1, 278839695), (3, 92946565), (5, 55767939), (15, 18589313), (17, 16402335), (23, 12123465), (51, 5467445), (69, 4041155), (85, 3280467), (115, 2424693), (255, 1093489), (345, 808231), (391, 713145), (1173, 237715), (1955, 142629), (5865, 47543)]