2015765720

素因数分解:

$2^3\times 5^1\times {\mathrm{1237}}^1\times {\mathrm{40739}}^1$

素因数の和:41987

約数の個数: 32

約数和(自身を含む): 4539250800

約数和(自身を除く): 2523485080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1237, 2474, 4948, 6185, 9896, 12370, 24740, 40739, 49480, 81478, 162956, 203695, 325912, 407390, 814780, 1629560, 50394143, 100788286, 201576572, 251970715, 403153144, 503941430, 1007882860, 2015765720]

約数ペア:

[(1, 2015765720), (2, 1007882860), (4, 503941430), (5, 403153144), (8, 251970715), (10, 201576572), (20, 100788286), (40, 50394143), (1237, 1629560), (2474, 814780), (4948, 407390), (6185, 325912), (9896, 203695), (12370, 162956), (24740, 81478), (40739, 49480)]