27878385

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{59}}^1\times {\mathrm{109}}^1$

素因数の和:210

約数の個数: 48

約数和(自身を含む): 48628800

約数和(自身を除く): 20750415

約数列:

[1, 3, 5, 15, 17, 51, 59, 85, 109, 177, 255, 289, 295, 327, 545, 867, 885, 1003, 1445, 1635, 1853, 3009, 4335, 5015, 5559, 6431, 9265, 15045, 17051, 19293, 27795, 31501, 32155, 51153, 85255, 94503, 96465, 109327, 157505, 255765, 327981, 472515, 546635, 1639905, 1858559, 5575677, 9292795, 27878385]

約数ペア:

[(1, 27878385), (3, 9292795), (5, 5575677), (15, 1858559), (17, 1639905), (51, 546635), (59, 472515), (85, 327981), (109, 255765), (177, 157505), (255, 109327), (289, 96465), (295, 94503), (327, 85255), (545, 51153), (867, 32155), (885, 31501), (1003, 27795), (1445, 19293), (1635, 17051), (1853, 15045), (3009, 9265), (4335, 6431), (5015, 5559)]