18730040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{443}}^1$

素因数の和:612

約数の個数: 64

約数和(自身を含む): 48591360

約数和(自身を除く): 29861320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 151, 280, 302, 443, 604, 755, 886, 1057, 1208, 1510, 1772, 2114, 2215, 3020, 3101, 3544, 4228, 4430, 5285, 6040, 6202, 8456, 8860, 10570, 12404, 15505, 17720, 21140, 24808, 31010, 42280, 62020, 66893, 124040, 133786, 267572, 334465, 468251, 535144, 668930, 936502, 1337860, 1873004, 2341255, 2675720, 3746008, 4682510, 9365020, 18730040]

約数ペア:

[(1, 18730040), (2, 9365020), (4, 4682510), (5, 3746008), (7, 2675720), (8, 2341255), (10, 1873004), (14, 1337860), (20, 936502), (28, 668930), (35, 535144), (40, 468251), (56, 334465), (70, 267572), (140, 133786), (151, 124040), (280, 66893), (302, 62020), (443, 42280), (604, 31010), (755, 24808), (886, 21140), (1057, 17720), (1208, 15505), (1510, 12404), (1772, 10570), (2114, 8860), (2215, 8456), (3020, 6202), (3101, 6040), (3544, 5285), (4228, 4430)]