18320775

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{419}}^1$

素因数の和:496

約数の個数: 48

約数和(自身を含む): 33747840

約数和(自身を除く): 15427065

約数列:

[1, 3, 5, 11, 15, 25, 33, 53, 55, 75, 159, 165, 265, 275, 419, 583, 795, 825, 1257, 1325, 1749, 2095, 2915, 3975, 4609, 6285, 8745, 10475, 13827, 14575, 22207, 23045, 31425, 43725, 66621, 69135, 111035, 115225, 244277, 333105, 345675, 555175, 732831, 1221385, 1665525, 3664155, 6106925, 18320775]

約数ペア:

[(1, 18320775), (3, 6106925), (5, 3664155), (11, 1665525), (15, 1221385), (25, 732831), (33, 555175), (53, 345675), (55, 333105), (75, 244277), (159, 115225), (165, 111035), (265, 69135), (275, 66621), (419, 43725), (583, 31425), (795, 23045), (825, 22207), (1257, 14575), (1325, 13827), (1749, 10475), (2095, 8745), (2915, 6285), (3975, 4609)]