289399720

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{149}}^1\times {\mathrm{823}}^1$

素因数の和:1042

約数の個数: 64

約数和(自身を含む): 667440000

約数和(自身を除く): 378040280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 149, 236, 295, 298, 472, 590, 596, 745, 823, 1180, 1192, 1490, 1646, 2360, 2980, 3292, 4115, 5960, 6584, 8230, 8791, 16460, 17582, 32920, 35164, 43955, 48557, 70328, 87910, 97114, 122627, 175820, 194228, 242785, 245254, 351640, 388456, 485570, 490508, 613135, 971140, 981016, 1226270, 1942280, 2452540, 4905080, 7234993, 14469986, 28939972, 36174965, 57879944, 72349930, 144699860, 289399720]

約数ペア:

[(1, 289399720), (2, 144699860), (4, 72349930), (5, 57879944), (8, 36174965), (10, 28939972), (20, 14469986), (40, 7234993), (59, 4905080), (118, 2452540), (149, 1942280), (236, 1226270), (295, 981016), (298, 971140), (472, 613135), (590, 490508), (596, 485570), (745, 388456), (823, 351640), (1180, 245254), (1192, 242785), (1490, 194228), (1646, 175820), (2360, 122627), (2980, 97114), (3292, 87910), (4115, 70328), (5960, 48557), (6584, 43955), (8230, 35164), (8791, 32920), (16460, 17582)]