149710520

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{87041}}^1$

素因数の和:87095

約数の個数: 32

約数和(自身を含む): 344686320

約数和(自身を除く): 194975800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 87041, 174082, 348164, 435205, 696328, 870410, 1740820, 3481640, 3742763, 7485526, 14971052, 18713815, 29942104, 37427630, 74855260, 149710520]

約数ペア:

[(1, 149710520), (2, 74855260), (4, 37427630), (5, 29942104), (8, 18713815), (10, 14971052), (20, 7485526), (40, 3742763), (43, 3481640), (86, 1740820), (172, 870410), (215, 696328), (344, 435205), (430, 348164), (860, 174082), (1720, 87041)]