20804954000

素因数分解:

$2^4\times 5^3\times {\mathrm{10402477}}^1$

素因数の和:10402500

約数の個数: 40

約数和(自身を含む): 50306383608

約数和(自身を除く): 29501429608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 10402477, 20804954, 41609908, 52012385, 83219816, 104024770, 166439632, 208049540, 260061925, 416099080, 520123850, 832198160, 1040247700, 1300309625, 2080495400, 2600619250, 4160990800, 5201238500, 10402477000, 20804954000]

約数ペア:

[(1, 20804954000), (2, 10402477000), (4, 5201238500), (5, 4160990800), (8, 2600619250), (10, 2080495400), (16, 1300309625), (20, 1040247700), (25, 832198160), (40, 520123850), (50, 416099080), (80, 260061925), (100, 208049540), (125, 166439632), (200, 104024770), (250, 83219816), (400, 52012385), (500, 41609908), (1000, 20804954), (2000, 10402477)]