28767432820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{977}}^1\times {\mathrm{210319}}^1$

素因数の和:211312

約数の個数: 48

約数和(自身を含む): 69112834560

約数和(自身を除く): 40345401740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 977, 1954, 3908, 4885, 6839, 9770, 13678, 19540, 27356, 34195, 68390, 136780, 210319, 420638, 841276, 1051595, 1472233, 2103190, 2944466, 4206380, 5888932, 7361165, 14722330, 29444660, 205481663, 410963326, 821926652, 1027408315, 1438371641, 2054816630, 2876743282, 4109633260, 5753486564, 7191858205, 14383716410, 28767432820]

約数ペア:

[(1, 28767432820), (2, 14383716410), (4, 7191858205), (5, 5753486564), (7, 4109633260), (10, 2876743282), (14, 2054816630), (20, 1438371641), (28, 1027408315), (35, 821926652), (70, 410963326), (140, 205481663), (977, 29444660), (1954, 14722330), (3908, 7361165), (4885, 5888932), (6839, 4206380), (9770, 2944466), (13678, 2103190), (19540, 1472233), (27356, 1051595), (34195, 841276), (68390, 420638), (136780, 210319)]