18280160

素因数分解:

$2^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2657}}^1$

素因数の和:2715

約数の個数: 48

約数和(自身を含む): 44207856

約数和(自身を除く): 25927696

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 80, 86, 160, 172, 215, 344, 430, 688, 860, 1376, 1720, 2657, 3440, 5314, 6880, 10628, 13285, 21256, 26570, 42512, 53140, 85024, 106280, 114251, 212560, 228502, 425120, 457004, 571255, 914008, 1142510, 1828016, 2285020, 3656032, 4570040, 9140080, 18280160]

約数ペア:

[(1, 18280160), (2, 9140080), (4, 4570040), (5, 3656032), (8, 2285020), (10, 1828016), (16, 1142510), (20, 914008), (32, 571255), (40, 457004), (43, 425120), (80, 228502), (86, 212560), (160, 114251), (172, 106280), (215, 85024), (344, 53140), (430, 42512), (688, 26570), (860, 21256), (1376, 13285), (1720, 10628), (2657, 6880), (3440, 5314)]