28371780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{967}}^1$

素因数の和:1145

約数の個数: 72

約数和(自身を含む): 86678592

約数和(自身を除く): 58306812

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 163, 180, 326, 489, 652, 815, 967, 978, 1467, 1630, 1934, 1956, 2445, 2901, 2934, 3260, 3868, 4835, 4890, 5802, 5868, 7335, 8703, 9670, 9780, 11604, 14505, 14670, 17406, 19340, 29010, 29340, 34812, 43515, 58020, 87030, 157621, 174060, 315242, 472863, 630484, 788105, 945726, 1418589, 1576210, 1891452, 2364315, 2837178, 3152420, 4728630, 5674356, 7092945, 9457260, 14185890, 28371780]

約数ペア:

[(1, 28371780), (2, 14185890), (3, 9457260), (4, 7092945), (5, 5674356), (6, 4728630), (9, 3152420), (10, 2837178), (12, 2364315), (15, 1891452), (18, 1576210), (20, 1418589), (30, 945726), (36, 788105), (45, 630484), (60, 472863), (90, 315242), (163, 174060), (180, 157621), (326, 87030), (489, 58020), (652, 43515), (815, 34812), (967, 29340), (978, 29010), (1467, 19340), (1630, 17406), (1934, 14670), (1956, 14505), (2445, 11604), (2901, 9780), (2934, 9670), (3260, 8703), (3868, 7335), (4835, 5868), (4890, 5802)]