20820816

素因数分解:

$2^4\times 3^2\times {\mathrm{144589}}^1$

素因数の和:144603

約数の個数: 30

約数和(自身を含む): 58269770

約数和(自身を除く): 37448954

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 144589, 289178, 433767, 578356, 867534, 1156712, 1301301, 1735068, 2313424, 2602602, 3470136, 5205204, 6940272, 10410408, 20820816]

約数ペア:

[(1, 20820816), (2, 10410408), (3, 6940272), (4, 5205204), (6, 3470136), (8, 2602602), (9, 2313424), (12, 1735068), (16, 1301301), (18, 1156712), (24, 867534), (36, 578356), (48, 433767), (72, 289178), (144, 144589)]