81867660

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{421}}^1\times {\mathrm{463}}^1$

素因数の和:903

約数の個数: 96

約数和(自身を含む): 263165952

約数和(自身を除く): 181298292

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 421, 463, 842, 926, 1263, 1389, 1684, 1852, 2105, 2315, 2526, 2778, 2947, 3241, 4210, 4630, 5052, 5556, 5894, 6315, 6482, 6945, 8420, 8841, 9260, 9723, 11788, 12630, 12964, 13890, 14735, 16205, 17682, 19446, 25260, 27780, 29470, 32410, 35364, 38892, 44205, 48615, 58940, 64820, 88410, 97230, 176820, 194460, 194923, 389846, 584769, 779692, 974615, 1169538, 1364461, 1949230, 2339076, 2728922, 2923845, 3898460, 4093383, 5457844, 5847690, 6822305, 8186766, 11695380, 13644610, 16373532, 20466915, 27289220, 40933830, 81867660]

約数ペア:

[(1, 81867660), (2, 40933830), (3, 27289220), (4, 20466915), (5, 16373532), (6, 13644610), (7, 11695380), (10, 8186766), (12, 6822305), (14, 5847690), (15, 5457844), (20, 4093383), (21, 3898460), (28, 2923845), (30, 2728922), (35, 2339076), (42, 1949230), (60, 1364461), (70, 1169538), (84, 974615), (105, 779692), (140, 584769), (210, 389846), (420, 194923), (421, 194460), (463, 176820), (842, 97230), (926, 88410), (1263, 64820), (1389, 58940), (1684, 48615), (1852, 44205), (2105, 38892), (2315, 35364), (2526, 32410), (2778, 29470), (2947, 27780), (3241, 25260), (4210, 19446), (4630, 17682), (5052, 16205), (5556, 14735), (5894, 13890), (6315, 12964), (6482, 12630), (6945, 11788), (8420, 9723), (8841, 9260)]