120721905

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{86539}}^1$

素因数の和:86581

約数の個数: 24

約数和(自身を含む): 216003840

約数和(自身を除く): 95281935

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 1395, 86539, 259617, 432695, 778851, 1298085, 2682709, 3894255, 8048127, 13413545, 24144381, 40240635, 120721905]

約数ペア:

[(1, 120721905), (3, 40240635), (5, 24144381), (9, 13413545), (15, 8048127), (31, 3894255), (45, 2682709), (93, 1298085), (155, 778851), (279, 432695), (465, 259617), (1395, 86539)]