91678010

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{239}}^1\times {\mathrm{431}}^1$

素因数の和:766

約数の個数: 32

約数和(自身を含む): 167961600

約数和(自身を除く): 76283590

約数列:

[1, 2, 5, 10, 89, 178, 239, 431, 445, 478, 862, 890, 1195, 2155, 2390, 4310, 21271, 38359, 42542, 76718, 103009, 106355, 191795, 206018, 212710, 383590, 515045, 1030090, 9167801, 18335602, 45839005, 91678010]

約数ペア:

[(1, 91678010), (2, 45839005), (5, 18335602), (10, 9167801), (89, 1030090), (178, 515045), (239, 383590), (431, 212710), (445, 206018), (478, 191795), (862, 106355), (890, 103009), (1195, 76718), (2155, 42542), (2390, 38359), (4310, 21271)]