20161191220

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{27244853}}^1$

素因数の和:27244899

約数の個数: 24

約数和(自身を含む): 43482786984

約数和(自身を除く): 23321595764

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 27244853, 54489706, 108979412, 136224265, 272448530, 544897060, 1008059561, 2016119122, 4032238244, 5040297805, 10080595610, 20161191220]

約数ペア:

[(1, 20161191220), (2, 10080595610), (4, 5040297805), (5, 4032238244), (10, 2016119122), (20, 1008059561), (37, 544897060), (74, 272448530), (148, 136224265), (185, 108979412), (370, 54489706), (740, 27244853)]