20996834740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{4053443}}^1$

素因数の和:4053496

約数の個数: 48

約数和(自身を含む): 51754372992

約数和(自身を除く): 30757538252

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 70, 74, 140, 148, 185, 259, 370, 518, 740, 1036, 1295, 2590, 5180, 4053443, 8106886, 16213772, 20267215, 28374101, 40534430, 56748202, 81068860, 113496404, 141870505, 149977391, 283741010, 299954782, 567482020, 599909564, 749886955, 1049841737, 1499773910, 2099683474, 2999547820, 4199366948, 5249208685, 10498417370, 20996834740]

約数ペア:

[(1, 20996834740), (2, 10498417370), (4, 5249208685), (5, 4199366948), (7, 2999547820), (10, 2099683474), (14, 1499773910), (20, 1049841737), (28, 749886955), (35, 599909564), (37, 567482020), (70, 299954782), (74, 283741010), (140, 149977391), (148, 141870505), (185, 113496404), (259, 81068860), (370, 56748202), (518, 40534430), (740, 28374101), (1036, 20267215), (1295, 16213772), (2590, 8106886), (5180, 4053443)]