7812880

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1601}}^1$

素因数の和:1675

約数の個数: 40

約数和(自身を含む): 18474264

約数和(自身を除く): 10661384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 1601, 2440, 3202, 4880, 6404, 8005, 12808, 16010, 25616, 32020, 64040, 97661, 128080, 195322, 390644, 488305, 781288, 976610, 1562576, 1953220, 3906440, 7812880]

約数ペア:

[(1, 7812880), (2, 3906440), (4, 1953220), (5, 1562576), (8, 976610), (10, 781288), (16, 488305), (20, 390644), (40, 195322), (61, 128080), (80, 97661), (122, 64040), (244, 32020), (305, 25616), (488, 16010), (610, 12808), (976, 8005), (1220, 6404), (1601, 4880), (2440, 3202)]