20123961128

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{4271}}^1\times {\mathrm{13697}}^1$

素因数の和:18017

約数の個数: 32

約数和(自身を含む): 38621784960

約数和(自身を除く): 18497823832

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 4271, 8542, 13697, 17084, 27394, 34168, 54788, 109576, 183653, 367306, 588971, 734612, 1177942, 1469224, 2355884, 4711768, 58499887, 116999774, 233999548, 467999096, 2515495141, 5030990282, 10061980564, 20123961128]

約数ペア:

[(1, 20123961128), (2, 10061980564), (4, 5030990282), (8, 2515495141), (43, 467999096), (86, 233999548), (172, 116999774), (344, 58499887), (4271, 4711768), (8542, 2355884), (13697, 1469224), (17084, 1177942), (27394, 734612), (34168, 588971), (54788, 367306), (109576, 183653)]