20174497265

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{313829}}^1$

素因数の和:313913

約数の個数: 32

約数和(自身を含む): 27837976320

約数和(自身を除く): 7663479055

約数列:

[1, 5, 13, 23, 43, 65, 115, 215, 299, 559, 989, 1495, 2795, 4945, 12857, 64285, 313829, 1569145, 4079777, 7218067, 13494647, 20398885, 36090335, 67473235, 93834871, 175430411, 310376881, 469174355, 877152055, 1551884405, 4034899453, 20174497265]

約数ペア:

[(1, 20174497265), (5, 4034899453), (13, 1551884405), (23, 877152055), (43, 469174355), (65, 310376881), (115, 175430411), (215, 93834871), (299, 67473235), (559, 36090335), (989, 20398885), (1495, 13494647), (2795, 7218067), (4945, 4079777), (12857, 1569145), (64285, 313829)]