428090

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1$

素因数の和:146

約数の個数: 32

約数和(自身を含む): 861840

約数和(自身を除く): 433750

約数列:

[1, 2, 5, 10, 13, 26, 37, 65, 74, 89, 130, 178, 185, 370, 445, 481, 890, 962, 1157, 2314, 2405, 3293, 4810, 5785, 6586, 11570, 16465, 32930, 42809, 85618, 214045, 428090]

約数ペア:

[(1, 428090), (2, 214045), (5, 85618), (10, 42809), (13, 32930), (26, 16465), (37, 11570), (65, 6586), (74, 5785), (89, 4810), (130, 3293), (178, 2405), (185, 2314), (370, 1157), (445, 962), (481, 890)]