165737780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{20563}}^1$

素因数の和:20616

約数の個数: 48

約数和(自身を含む): 386932224

約数和(自身を除く): 221194444

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 4030, 8060, 20563, 41126, 82252, 102815, 205630, 267319, 411260, 534638, 637453, 1069276, 1274906, 1336595, 2549812, 2673190, 3187265, 5346380, 6374530, 8286889, 12749060, 16573778, 33147556, 41434445, 82868890, 165737780]

約数ペア:

[(1, 165737780), (2, 82868890), (4, 41434445), (5, 33147556), (10, 16573778), (13, 12749060), (20, 8286889), (26, 6374530), (31, 5346380), (52, 3187265), (62, 2673190), (65, 2549812), (124, 1336595), (130, 1274906), (155, 1069276), (260, 637453), (310, 534638), (403, 411260), (620, 267319), (806, 205630), (1612, 102815), (2015, 82252), (4030, 41126), (8060, 20563)]