2191120

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{449}}^1$

素因数の和:523

約数の個数: 40

約数和(自身を含む): 5189400

約数和(自身を除く): 2998280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 449, 488, 610, 898, 976, 1220, 1796, 2245, 2440, 3592, 4490, 4880, 7184, 8980, 17960, 27389, 35920, 54778, 109556, 136945, 219112, 273890, 438224, 547780, 1095560, 2191120]

約数ペア:

[(1, 2191120), (2, 1095560), (4, 547780), (5, 438224), (8, 273890), (10, 219112), (16, 136945), (20, 109556), (40, 54778), (61, 35920), (80, 27389), (122, 17960), (244, 8980), (305, 7184), (449, 4880), (488, 4490), (610, 3592), (898, 2440), (976, 2245), (1220, 1796)]