20228975

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{929}}^1$

素因数の和:1019

約数の個数: 24

約数和(自身を含む): 27446160

約数和(自身を除く): 7217185

約数列:

[1, 5, 13, 25, 65, 67, 325, 335, 871, 929, 1675, 4355, 4645, 12077, 21775, 23225, 60385, 62243, 301925, 311215, 809159, 1556075, 4045795, 20228975]

約数ペア:

[(1, 20228975), (5, 4045795), (13, 1556075), (25, 809159), (65, 311215), (67, 301925), (325, 62243), (335, 60385), (871, 23225), (929, 21775), (1675, 12077), (4355, 4645)]