247198140

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{28027}}^1$

素因数の和:28056

約数の個数: 108

約数和(自身を含む): 872287416

約数和(自身を除く): 625089276

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 252, 294, 315, 420, 441, 490, 588, 630, 735, 882, 980, 1260, 1470, 1764, 2205, 2940, 4410, 8820, 28027, 56054, 84081, 112108, 140135, 168162, 196189, 252243, 280270, 336324, 392378, 420405, 504486, 560540, 588567, 784756, 840810, 980945, 1008972, 1177134, 1261215, 1373323, 1681620, 1765701, 1961890, 2354268, 2522430, 2746646, 2942835, 3531402, 3923780, 4119969, 5044860, 5493292, 5885670, 6866615, 7062804, 8239938, 8828505, 11771340, 12359907, 13733230, 16479876, 17657010, 20599845, 24719814, 27466460, 35314020, 41199690, 49439628, 61799535, 82399380, 123599070, 247198140]

約数ペア:

[(1, 247198140), (2, 123599070), (3, 82399380), (4, 61799535), (5, 49439628), (6, 41199690), (7, 35314020), (9, 27466460), (10, 24719814), (12, 20599845), (14, 17657010), (15, 16479876), (18, 13733230), (20, 12359907), (21, 11771340), (28, 8828505), (30, 8239938), (35, 7062804), (36, 6866615), (42, 5885670), (45, 5493292), (49, 5044860), (60, 4119969), (63, 3923780), (70, 3531402), (84, 2942835), (90, 2746646), (98, 2522430), (105, 2354268), (126, 1961890), (140, 1765701), (147, 1681620), (180, 1373323), (196, 1261215), (210, 1177134), (245, 1008972), (252, 980945), (294, 840810), (315, 784756), (420, 588567), (441, 560540), (490, 504486), (588, 420405), (630, 392378), (735, 336324), (882, 280270), (980, 252243), (1260, 196189), (1470, 168162), (1764, 140135), (2205, 112108), (2940, 84081), (4410, 56054), (8820, 28027)]