216721376

素因数分解:

$2^5\times {\mathrm{43}}^1\times {\mathrm{239}}^1\times {\mathrm{659}}^1$

素因数の和:951

約数の個数: 48

約数和(自身を含む): 439084800

約数和(自身を除く): 222363424

約数列:

[1, 2, 4, 8, 16, 32, 43, 86, 172, 239, 344, 478, 659, 688, 956, 1318, 1376, 1912, 2636, 3824, 5272, 7648, 10277, 10544, 20554, 21088, 28337, 41108, 56674, 82216, 113348, 157501, 164432, 226696, 315002, 328864, 453392, 630004, 906784, 1260008, 2520016, 5040032, 6772543, 13545086, 27090172, 54180344, 108360688, 216721376]

約数ペア:

[(1, 216721376), (2, 108360688), (4, 54180344), (8, 27090172), (16, 13545086), (32, 6772543), (43, 5040032), (86, 2520016), (172, 1260008), (239, 906784), (344, 630004), (478, 453392), (659, 328864), (688, 315002), (956, 226696), (1318, 164432), (1376, 157501), (1912, 113348), (2636, 82216), (3824, 56674), (5272, 41108), (7648, 28337), (10277, 21088), (10544, 20554)]