179431640

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^2\times {\mathrm{239}}^1$

素因数の和:524

約数の個数: 48

約数和(自身を含む): 408391200

約数和(自身を除く): 228959560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 239, 274, 478, 548, 685, 956, 1096, 1195, 1370, 1912, 2390, 2740, 4780, 5480, 9560, 18769, 32743, 37538, 65486, 75076, 93845, 130972, 150152, 163715, 187690, 261944, 327430, 375380, 654860, 750760, 1309720, 4485791, 8971582, 17943164, 22428955, 35886328, 44857910, 89715820, 179431640]

約数ペア:

[(1, 179431640), (2, 89715820), (4, 44857910), (5, 35886328), (8, 22428955), (10, 17943164), (20, 8971582), (40, 4485791), (137, 1309720), (239, 750760), (274, 654860), (478, 375380), (548, 327430), (685, 261944), (956, 187690), (1096, 163715), (1195, 150152), (1370, 130972), (1912, 93845), (2390, 75076), (2740, 65486), (4780, 37538), (5480, 32743), (9560, 18769)]