2891560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{449}}^1$

素因数の和:490

約数の個数: 64

約数和(自身を含む): 7776000

約数和(自身を除く): 4884440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 322, 449, 460, 644, 805, 898, 920, 1288, 1610, 1796, 2245, 3143, 3220, 3592, 4490, 6286, 6440, 8980, 10327, 12572, 15715, 17960, 20654, 25144, 31430, 41308, 51635, 62860, 72289, 82616, 103270, 125720, 144578, 206540, 289156, 361445, 413080, 578312, 722890, 1445780, 2891560]

約数ペア:

[(1, 2891560), (2, 1445780), (4, 722890), (5, 578312), (7, 413080), (8, 361445), (10, 289156), (14, 206540), (20, 144578), (23, 125720), (28, 103270), (35, 82616), (40, 72289), (46, 62860), (56, 51635), (70, 41308), (92, 31430), (115, 25144), (140, 20654), (161, 17960), (184, 15715), (230, 12572), (280, 10327), (322, 8980), (449, 6440), (460, 6286), (644, 4490), (805, 3592), (898, 3220), (920, 3143), (1288, 2245), (1610, 1796)]