20757470

素因数分解:

$2^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1\times {\mathrm{281}}^1$

素因数の和:460

約数の個数: 32

約数和(自身を含む): 38374560

約数和(自身を除く): 17617090

約数列:

[1, 2, 5, 10, 83, 89, 166, 178, 281, 415, 445, 562, 830, 890, 1405, 2810, 7387, 14774, 23323, 25009, 36935, 46646, 50018, 73870, 116615, 125045, 233230, 250090, 2075747, 4151494, 10378735, 20757470]

約数ペア:

[(1, 20757470), (2, 10378735), (5, 4151494), (10, 2075747), (83, 250090), (89, 233230), (166, 125045), (178, 116615), (281, 73870), (415, 50018), (445, 46646), (562, 36935), (830, 25009), (890, 23323), (1405, 14774), (2810, 7387)]