20641569320

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{30355249}}^1$

素因数の和:30355277

約数の個数: 32

約数和(自身を含む): 49175505000

約数和(自身を除く): 28533935680

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 30355249, 60710498, 121420996, 151776245, 242841992, 303552490, 516039233, 607104980, 1032078466, 1214209960, 2064156932, 2580196165, 4128313864, 5160392330, 10320784660, 20641569320]

約数ペア:

[(1, 20641569320), (2, 10320784660), (4, 5160392330), (5, 4128313864), (8, 2580196165), (10, 2064156932), (17, 1214209960), (20, 1032078466), (34, 607104980), (40, 516039233), (68, 303552490), (85, 242841992), (136, 151776245), (170, 121420996), (340, 60710498), (680, 30355249)]