12990880

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{1657}}^1$

素因数の和:1686

約数の個数: 72

約数和(自身を含む): 35723268

約数和(自身を除く): 22732388

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1657, 1960, 3314, 3920, 6628, 7840, 8285, 11599, 13256, 16570, 23198, 26512, 33140, 46396, 53024, 57995, 66280, 81193, 92792, 115990, 132560, 162386, 185584, 231980, 265120, 324772, 371168, 405965, 463960, 649544, 811930, 927920, 1299088, 1623860, 1855840, 2598176, 3247720, 6495440, 12990880]

約数ペア:

[(1, 12990880), (2, 6495440), (4, 3247720), (5, 2598176), (7, 1855840), (8, 1623860), (10, 1299088), (14, 927920), (16, 811930), (20, 649544), (28, 463960), (32, 405965), (35, 371168), (40, 324772), (49, 265120), (56, 231980), (70, 185584), (80, 162386), (98, 132560), (112, 115990), (140, 92792), (160, 81193), (196, 66280), (224, 57995), (245, 53024), (280, 46396), (392, 33140), (490, 26512), (560, 23198), (784, 16570), (980, 13256), (1120, 11599), (1568, 8285), (1657, 7840), (1960, 6628), (3314, 3920)]