20194497560

素因数分解:

$2^3\times 5^1\times {\mathrm{2689}}^1\times {\mathrm{187751}}^1$

素因数の和:190451

約数の個数: 32

約数和(自身を含む): 45454759200

約数和(自身を除く): 25260261640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2689, 5378, 10756, 13445, 21512, 26890, 53780, 107560, 187751, 375502, 751004, 938755, 1502008, 1877510, 3755020, 7510040, 504862439, 1009724878, 2019449756, 2524312195, 4038899512, 5048624390, 10097248780, 20194497560]

約数ペア:

[(1, 20194497560), (2, 10097248780), (4, 5048624390), (5, 4038899512), (8, 2524312195), (10, 2019449756), (20, 1009724878), (40, 504862439), (2689, 7510040), (5378, 3755020), (10756, 1877510), (13445, 1502008), (21512, 938755), (26890, 751004), (53780, 375502), (107560, 187751)]