257263840

素因数分解:

$2^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{613}}^1$

素因数の和:732

約数の個数: 96

約数和(自身を含む): 633146976

約数和(自身を除く): 375883136

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 61, 80, 86, 122, 160, 172, 215, 244, 305, 344, 430, 488, 610, 613, 688, 860, 976, 1220, 1226, 1376, 1720, 1952, 2440, 2452, 2623, 3065, 3440, 4880, 4904, 5246, 6130, 6880, 9760, 9808, 10492, 12260, 13115, 19616, 20984, 24520, 26230, 26359, 37393, 41968, 49040, 52460, 52718, 74786, 83936, 98080, 104920, 105436, 131795, 149572, 186965, 209840, 210872, 263590, 299144, 373930, 419680, 421744, 527180, 598288, 747860, 843488, 1054360, 1196576, 1495720, 1607899, 2108720, 2991440, 3215798, 4217440, 5982880, 6431596, 8039495, 12863192, 16078990, 25726384, 32157980, 51452768, 64315960, 128631920, 257263840]

約数ペア:

[(1, 257263840), (2, 128631920), (4, 64315960), (5, 51452768), (8, 32157980), (10, 25726384), (16, 16078990), (20, 12863192), (32, 8039495), (40, 6431596), (43, 5982880), (61, 4217440), (80, 3215798), (86, 2991440), (122, 2108720), (160, 1607899), (172, 1495720), (215, 1196576), (244, 1054360), (305, 843488), (344, 747860), (430, 598288), (488, 527180), (610, 421744), (613, 419680), (688, 373930), (860, 299144), (976, 263590), (1220, 210872), (1226, 209840), (1376, 186965), (1720, 149572), (1952, 131795), (2440, 105436), (2452, 104920), (2623, 98080), (3065, 83936), (3440, 74786), (4880, 52718), (4904, 52460), (5246, 49040), (6130, 41968), (6880, 37393), (9760, 26359), (9808, 26230), (10492, 24520), (12260, 20984), (13115, 19616)]