254388984

素因数分解:

$2^3\times 3^1\times {\mathrm{157}}^1\times {\mathrm{181}}^1\times {\mathrm{373}}^1$

素因数の和:720

約数の個数: 64

約数和(自身を含む): 645284640

約数和(自身を除く): 390895656

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 157, 181, 314, 362, 373, 471, 543, 628, 724, 746, 942, 1086, 1119, 1256, 1448, 1492, 1884, 2172, 2238, 2984, 3768, 4344, 4476, 8952, 28417, 56834, 58561, 67513, 85251, 113668, 117122, 135026, 170502, 175683, 202539, 227336, 234244, 270052, 341004, 351366, 405078, 468488, 540104, 682008, 702732, 810156, 1405464, 1620312, 10599541, 21199082, 31798623, 42398164, 63597246, 84796328, 127194492, 254388984]

約数ペア:

[(1, 254388984), (2, 127194492), (3, 84796328), (4, 63597246), (6, 42398164), (8, 31798623), (12, 21199082), (24, 10599541), (157, 1620312), (181, 1405464), (314, 810156), (362, 702732), (373, 682008), (471, 540104), (543, 468488), (628, 405078), (724, 351366), (746, 341004), (942, 270052), (1086, 234244), (1119, 227336), (1256, 202539), (1448, 175683), (1492, 170502), (1884, 135026), (2172, 117122), (2238, 113668), (2984, 85251), (3768, 67513), (4344, 58561), (4476, 56834), (8952, 28417)]