18216160

素因数分解:

$2^5\times 5^1\times {\mathrm{257}}^1\times {\mathrm{443}}^1$

素因数の和:715

約数の個数: 48

約数和(自身を含む): 43300656

約数和(自身を除く): 25084496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 257, 443, 514, 886, 1028, 1285, 1772, 2056, 2215, 2570, 3544, 4112, 4430, 5140, 7088, 8224, 8860, 10280, 14176, 17720, 20560, 35440, 41120, 70880, 113851, 227702, 455404, 569255, 910808, 1138510, 1821616, 2277020, 3643232, 4554040, 9108080, 18216160]

約数ペア:

[(1, 18216160), (2, 9108080), (4, 4554040), (5, 3643232), (8, 2277020), (10, 1821616), (16, 1138510), (20, 910808), (32, 569255), (40, 455404), (80, 227702), (160, 113851), (257, 70880), (443, 41120), (514, 35440), (886, 20560), (1028, 17720), (1285, 14176), (1772, 10280), (2056, 8860), (2215, 8224), (2570, 7088), (3544, 5140), (4112, 4430)]