28749585

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^2\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:162

約数の個数: 48

約数和(自身を含む): 49667904

約数和(自身を除く): 20918319

約数列:

[1, 3, 5, 15, 29, 43, 53, 87, 129, 145, 159, 215, 265, 435, 645, 795, 841, 1247, 1537, 2279, 2523, 3741, 4205, 4611, 6235, 6837, 7685, 11395, 12615, 18705, 23055, 34185, 36163, 44573, 66091, 108489, 133719, 180815, 198273, 222865, 330455, 542445, 668595, 991365, 1916639, 5749917, 9583195, 28749585]

約数ペア:

[(1, 28749585), (3, 9583195), (5, 5749917), (15, 1916639), (29, 991365), (43, 668595), (53, 542445), (87, 330455), (129, 222865), (145, 198273), (159, 180815), (215, 133719), (265, 108489), (435, 66091), (645, 44573), (795, 36163), (841, 34185), (1247, 23055), (1537, 18705), (2279, 12615), (2523, 11395), (3741, 7685), (4205, 6837), (4611, 6235)]