12979960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{307}}^1$

素因数の和:476

約数の個数: 64

約数和(自身を含む): 33707520

約数和(自身を除く): 20727560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 151, 280, 302, 307, 604, 614, 755, 1057, 1208, 1228, 1510, 1535, 2114, 2149, 2456, 3020, 3070, 4228, 4298, 5285, 6040, 6140, 8456, 8596, 10570, 10745, 12280, 17192, 21140, 21490, 42280, 42980, 46357, 85960, 92714, 185428, 231785, 324499, 370856, 463570, 648998, 927140, 1297996, 1622495, 1854280, 2595992, 3244990, 6489980, 12979960]

約数ペア:

[(1, 12979960), (2, 6489980), (4, 3244990), (5, 2595992), (7, 1854280), (8, 1622495), (10, 1297996), (14, 927140), (20, 648998), (28, 463570), (35, 370856), (40, 324499), (56, 231785), (70, 185428), (140, 92714), (151, 85960), (280, 46357), (302, 42980), (307, 42280), (604, 21490), (614, 21140), (755, 17192), (1057, 12280), (1208, 10745), (1228, 10570), (1510, 8596), (1535, 8456), (2114, 6140), (2149, 6040), (2456, 5285), (3020, 4298), (3070, 4228)]