20201576

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{1669}}^1$

素因数の和:1781

約数の個数: 32

約数和(自身を含む): 40581000

約数和(自身を除く): 20379424

約数列:

[1, 2, 4, 8, 17, 34, 68, 89, 136, 178, 356, 712, 1513, 1669, 3026, 3338, 6052, 6676, 12104, 13352, 28373, 56746, 113492, 148541, 226984, 297082, 594164, 1188328, 2525197, 5050394, 10100788, 20201576]

約数ペア:

[(1, 20201576), (2, 10100788), (4, 5050394), (8, 2525197), (17, 1188328), (34, 594164), (68, 297082), (89, 226984), (136, 148541), (178, 113492), (356, 56746), (712, 28373), (1513, 13352), (1669, 12104), (3026, 6676), (3338, 6052)]