8178660

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{6491}}^1$

素因数の和:6513

約数の個数: 72

約数和(自身を含む): 28357056

約数和(自身を除く): 20178396

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, 6491, 12982, 19473, 25964, 32455, 38946, 45437, 58419, 64910, 77892, 90874, 97365, 116838, 129820, 136311, 181748, 194730, 227185, 233676, 272622, 292095, 389460, 408933, 454370, 545244, 584190, 681555, 817866, 908740, 1168380, 1363110, 1635732, 2044665, 2726220, 4089330, 8178660]

約数ペア:

[(1, 8178660), (2, 4089330), (3, 2726220), (4, 2044665), (5, 1635732), (6, 1363110), (7, 1168380), (9, 908740), (10, 817866), (12, 681555), (14, 584190), (15, 545244), (18, 454370), (20, 408933), (21, 389460), (28, 292095), (30, 272622), (35, 233676), (36, 227185), (42, 194730), (45, 181748), (60, 136311), (63, 129820), (70, 116838), (84, 97365), (90, 90874), (105, 77892), (126, 64910), (140, 58419), (180, 45437), (210, 38946), (252, 32455), (315, 25964), (420, 19473), (630, 12982), (1260, 6491)]