8321320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{263}}^1$

素因数の和:394

約数の個数: 64

約数和(自身を含む): 21669120

約数和(自身を除く): 13347800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 113, 140, 226, 263, 280, 452, 526, 565, 791, 904, 1052, 1130, 1315, 1582, 1841, 2104, 2260, 2630, 3164, 3682, 3955, 4520, 5260, 6328, 7364, 7910, 9205, 10520, 14728, 15820, 18410, 29719, 31640, 36820, 59438, 73640, 118876, 148595, 208033, 237752, 297190, 416066, 594380, 832132, 1040165, 1188760, 1664264, 2080330, 4160660, 8321320]

約数ペア:

[(1, 8321320), (2, 4160660), (4, 2080330), (5, 1664264), (7, 1188760), (8, 1040165), (10, 832132), (14, 594380), (20, 416066), (28, 297190), (35, 237752), (40, 208033), (56, 148595), (70, 118876), (113, 73640), (140, 59438), (226, 36820), (263, 31640), (280, 29719), (452, 18410), (526, 15820), (565, 14728), (791, 10520), (904, 9205), (1052, 7910), (1130, 7364), (1315, 6328), (1582, 5260), (1841, 4520), (2104, 3955), (2260, 3682), (2630, 3164)]