20797724060

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{157}}^1\times {\mathrm{65579}}^1$

素因数の和:65846

約数の個数: 48

約数和(自身を含む): 44389265760

約数和(自身を除く): 23591541700

約数列:

[1, 2, 4, 5, 10, 20, 101, 157, 202, 314, 404, 505, 628, 785, 1010, 1570, 2020, 3140, 15857, 31714, 63428, 65579, 79285, 131158, 158570, 262316, 317140, 327895, 655790, 1311580, 6623479, 10295903, 13246958, 20591806, 26493916, 33117395, 41183612, 51479515, 66234790, 102959030, 132469580, 205918060, 1039886203, 2079772406, 4159544812, 5199431015, 10398862030, 20797724060]

約数ペア:

[(1, 20797724060), (2, 10398862030), (4, 5199431015), (5, 4159544812), (10, 2079772406), (20, 1039886203), (101, 205918060), (157, 132469580), (202, 102959030), (314, 66234790), (404, 51479515), (505, 41183612), (628, 33117395), (785, 26493916), (1010, 20591806), (1570, 13246958), (2020, 10295903), (3140, 6623479), (15857, 1311580), (31714, 655790), (63428, 327895), (65579, 317140), (79285, 262316), (131158, 158570)]