20199560000

素因数分解:

$2^6\times 5^4\times {\mathrm{504989}}^1$

素因数の和:505021

約数の個数: 70

約数和(自身を含む): 50088443130

約数和(自身を除く): 29888883130

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 160, 200, 250, 320, 400, 500, 625, 800, 1000, 1250, 1600, 2000, 2500, 4000, 5000, 8000, 10000, 20000, 40000, 504989, 1009978, 2019956, 2524945, 4039912, 5049890, 8079824, 10099780, 12624725, 16159648, 20199560, 25249450, 32319296, 40399120, 50498900, 63123625, 80798240, 100997800, 126247250, 161596480, 201995600, 252494500, 315618125, 403991200, 504989000, 631236250, 807982400, 1009978000, 1262472500, 2019956000, 2524945000, 4039912000, 5049890000, 10099780000, 20199560000]

約数ペア:

[(1, 20199560000), (2, 10099780000), (4, 5049890000), (5, 4039912000), (8, 2524945000), (10, 2019956000), (16, 1262472500), (20, 1009978000), (25, 807982400), (32, 631236250), (40, 504989000), (50, 403991200), (64, 315618125), (80, 252494500), (100, 201995600), (125, 161596480), (160, 126247250), (200, 100997800), (250, 80798240), (320, 63123625), (400, 50498900), (500, 40399120), (625, 32319296), (800, 25249450), (1000, 20199560), (1250, 16159648), (1600, 12624725), (2000, 10099780), (2500, 8079824), (4000, 5049890), (5000, 4039912), (8000, 2524945), (10000, 2019956), (20000, 1009978), (40000, 504989)]