128017680

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{421}}^1$

素因数の和:625

約数の個数: 160

約数和(自身を含む): 457137408

約数和(自身を除く): 329119728

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 181, 210, 240, 280, 336, 362, 420, 421, 543, 560, 724, 840, 842, 905, 1086, 1263, 1267, 1448, 1680, 1684, 1810, 2105, 2172, 2526, 2534, 2715, 2896, 2947, 3368, 3620, 3801, 4210, 4344, 5052, 5068, 5430, 5894, 6315, 6335, 6736, 7240, 7602, 8420, 8688, 8841, 10104, 10136, 10860, 11788, 12630, 12670, 14480, 14735, 15204, 16840, 17682, 19005, 20208, 20272, 21720, 23576, 25260, 25340, 29470, 30408, 33680, 35364, 38010, 43440, 44205, 47152, 50520, 50680, 58940, 60816, 70728, 76020, 76201, 88410, 101040, 101360, 117880, 141456, 152040, 152402, 176820, 228603, 235760, 304080, 304804, 353640, 381005, 457206, 533407, 609608, 707280, 762010, 914412, 1066814, 1143015, 1219216, 1524020, 1600221, 1828824, 2133628, 2286030, 2667035, 3048040, 3200442, 3657648, 4267256, 4572060, 5334070, 6096080, 6400884, 8001105, 8534512, 9144120, 10668140, 12801768, 16002210, 18288240, 21336280, 25603536, 32004420, 42672560, 64008840, 128017680]

約数ペア:

[(1, 128017680), (2, 64008840), (3, 42672560), (4, 32004420), (5, 25603536), (6, 21336280), (7, 18288240), (8, 16002210), (10, 12801768), (12, 10668140), (14, 9144120), (15, 8534512), (16, 8001105), (20, 6400884), (21, 6096080), (24, 5334070), (28, 4572060), (30, 4267256), (35, 3657648), (40, 3200442), (42, 3048040), (48, 2667035), (56, 2286030), (60, 2133628), (70, 1828824), (80, 1600221), (84, 1524020), (105, 1219216), (112, 1143015), (120, 1066814), (140, 914412), (168, 762010), (181, 707280), (210, 609608), (240, 533407), (280, 457206), (336, 381005), (362, 353640), (420, 304804), (421, 304080), (543, 235760), (560, 228603), (724, 176820), (840, 152402), (842, 152040), (905, 141456), (1086, 117880), (1263, 101360), (1267, 101040), (1448, 88410), (1680, 76201), (1684, 76020), (1810, 70728), (2105, 60816), (2172, 58940), (2526, 50680), (2534, 50520), (2715, 47152), (2896, 44205), (2947, 43440), (3368, 38010), (3620, 35364), (3801, 33680), (4210, 30408), (4344, 29470), (5052, 25340), (5068, 25260), (5430, 23576), (5894, 21720), (6315, 20272), (6335, 20208), (6736, 19005), (7240, 17682), (7602, 16840), (8420, 15204), (8688, 14735), (8841, 14480), (10104, 12670), (10136, 12630), (10860, 11788)]