388670745

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{80221}}^1$

素因数の和:80265

約数の個数: 32

約数和(自身を含む): 693118080

約数和(自身を除く): 304447335

約数列:

[1, 3, 5, 15, 17, 19, 51, 57, 85, 95, 255, 285, 323, 969, 1615, 4845, 80221, 240663, 401105, 1203315, 1363757, 1524199, 4091271, 4572597, 6818785, 7620995, 20456355, 22862985, 25911383, 77734149, 129556915, 388670745]

約数ペア:

[(1, 388670745), (3, 129556915), (5, 77734149), (15, 25911383), (17, 22862985), (19, 20456355), (51, 7620995), (57, 6818785), (85, 4572597), (95, 4091271), (255, 1524199), (285, 1363757), (323, 1203315), (969, 401105), (1615, 240663), (4845, 80221)]