320658660

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{254491}}^1$

素因数の和:254513

約数の個数: 72

約数和(自身を含む): 1111621056

約数和(自身を除く): 790962396

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 254491, 508982, 763473, 1017964, 1272455, 1526946, 1781437, 2290419, 2544910, 3053892, 3562874, 3817365, 4580838, 5089820, 5344311, 7125748, 7634730, 8907185, 9161676, 10688622, 11452095, 15269460, 16032933, 17814370, 21377244, 22904190, 26721555, 32065866, 35628740, 45808380, 53443110, 64131732, 80164665, 106886220, 160329330, 320658660]

約数ペア:

[(1, 320658660), (2, 160329330), (3, 106886220), (4, 80164665), (5, 64131732), (6, 53443110), (7, 45808380), (9, 35628740), (10, 32065866), (12, 26721555), (14, 22904190), (15, 21377244), (18, 17814370), (20, 16032933), (21, 15269460), (28, 11452095), (30, 10688622), (35, 9161676), (36, 8907185), (42, 7634730), (45, 7125748), (60, 5344311), (63, 5089820), (70, 4580838), (84, 3817365), (90, 3562874), (105, 3053892), (126, 2544910), (140, 2290419), (180, 1781437), (210, 1526946), (252, 1272455), (315, 1017964), (420, 763473), (630, 508982), (1260, 254491)]