81741360

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{421}}^1\times {\mathrm{809}}^1$

素因数の和:1246

約数の個数: 80

約数和(自身を含む): 254314080

約数和(自身を除く): 172572720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 421, 809, 842, 1263, 1618, 1684, 2105, 2427, 2526, 3236, 3368, 4045, 4210, 4854, 5052, 6315, 6472, 6736, 8090, 8420, 9708, 10104, 12135, 12630, 12944, 16180, 16840, 19416, 20208, 24270, 25260, 32360, 33680, 38832, 48540, 50520, 64720, 97080, 101040, 194160, 340589, 681178, 1021767, 1362356, 1702945, 2043534, 2724712, 3405890, 4087068, 5108835, 5449424, 6811780, 8174136, 10217670, 13623560, 16348272, 20435340, 27247120, 40870680, 81741360]

約数ペア:

[(1, 81741360), (2, 40870680), (3, 27247120), (4, 20435340), (5, 16348272), (6, 13623560), (8, 10217670), (10, 8174136), (12, 6811780), (15, 5449424), (16, 5108835), (20, 4087068), (24, 3405890), (30, 2724712), (40, 2043534), (48, 1702945), (60, 1362356), (80, 1021767), (120, 681178), (240, 340589), (421, 194160), (809, 101040), (842, 97080), (1263, 64720), (1618, 50520), (1684, 48540), (2105, 38832), (2427, 33680), (2526, 32360), (3236, 25260), (3368, 24270), (4045, 20208), (4210, 19416), (4854, 16840), (5052, 16180), (6315, 12944), (6472, 12630), (6736, 12135), (8090, 10104), (8420, 9708)]