268463920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{239}}^1\times {\mathrm{739}}^1$

素因数の和:1010

約数の個数: 80

約数和(自身を含む): 660672000

約数和(自身を除く): 392208080

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 239, 304, 380, 478, 739, 760, 956, 1195, 1478, 1520, 1912, 2390, 2956, 3695, 3824, 4541, 4780, 5912, 7390, 9082, 9560, 11824, 14041, 14780, 18164, 19120, 22705, 28082, 29560, 36328, 45410, 56164, 59120, 70205, 72656, 90820, 112328, 140410, 176621, 181640, 224656, 280820, 353242, 363280, 561640, 706484, 883105, 1123280, 1412968, 1766210, 2825936, 3355799, 3532420, 6711598, 7064840, 13423196, 14129680, 16778995, 26846392, 33557990, 53692784, 67115980, 134231960, 268463920]

約数ペア:

[(1, 268463920), (2, 134231960), (4, 67115980), (5, 53692784), (8, 33557990), (10, 26846392), (16, 16778995), (19, 14129680), (20, 13423196), (38, 7064840), (40, 6711598), (76, 3532420), (80, 3355799), (95, 2825936), (152, 1766210), (190, 1412968), (239, 1123280), (304, 883105), (380, 706484), (478, 561640), (739, 363280), (760, 353242), (956, 280820), (1195, 224656), (1478, 181640), (1520, 176621), (1912, 140410), (2390, 112328), (2956, 90820), (3695, 72656), (3824, 70205), (4541, 59120), (4780, 56164), (5912, 45410), (7390, 36328), (9082, 29560), (9560, 28082), (11824, 22705), (14041, 19120), (14780, 18164)]