31251520

素因数分解:

$2^6\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1601}}^1$

素因数の和:1679

約数の個数: 56

約数和(自身を含む): 75684888

約数和(自身を除く): 44433368

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 160, 244, 305, 320, 488, 610, 976, 1220, 1601, 1952, 2440, 3202, 3904, 4880, 6404, 8005, 9760, 12808, 16010, 19520, 25616, 32020, 51232, 64040, 97661, 102464, 128080, 195322, 256160, 390644, 488305, 512320, 781288, 976610, 1562576, 1953220, 3125152, 3906440, 6250304, 7812880, 15625760, 31251520]

約数ペア:

[(1, 31251520), (2, 15625760), (4, 7812880), (5, 6250304), (8, 3906440), (10, 3125152), (16, 1953220), (20, 1562576), (32, 976610), (40, 781288), (61, 512320), (64, 488305), (80, 390644), (122, 256160), (160, 195322), (244, 128080), (305, 102464), (320, 97661), (488, 64040), (610, 51232), (976, 32020), (1220, 25616), (1601, 19520), (1952, 16010), (2440, 12808), (3202, 9760), (3904, 8005), (4880, 6404)]