204570040

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{277}}^1\times {\mathrm{499}}^1$

素因数の和:824

約数の個数: 64

約数和(自身を含む): 475380000

約数和(自身を除く): 270809960

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 277, 296, 370, 499, 554, 740, 998, 1108, 1385, 1480, 1996, 2216, 2495, 2770, 3992, 4990, 5540, 9980, 10249, 11080, 18463, 19960, 20498, 36926, 40996, 51245, 73852, 81992, 92315, 102490, 138223, 147704, 184630, 204980, 276446, 369260, 409960, 552892, 691115, 738520, 1105784, 1382230, 2764460, 5114251, 5528920, 10228502, 20457004, 25571255, 40914008, 51142510, 102285020, 204570040]

約数ペア:

[(1, 204570040), (2, 102285020), (4, 51142510), (5, 40914008), (8, 25571255), (10, 20457004), (20, 10228502), (37, 5528920), (40, 5114251), (74, 2764460), (148, 1382230), (185, 1105784), (277, 738520), (296, 691115), (370, 552892), (499, 409960), (554, 369260), (740, 276446), (998, 204980), (1108, 184630), (1385, 147704), (1480, 138223), (1996, 102490), (2216, 92315), (2495, 81992), (2770, 73852), (3992, 51245), (4990, 40996), (5540, 36926), (9980, 20498), (10249, 19960), (11080, 18463)]