20178946420

素因数分解:

$2^2\times 5^1\times {\mathrm{727}}^1\times {\mathrm{1387823}}^1$

素因数の和:1388559

約数の個数: 24

約数和(自身を含む): 42434106624

約数和(自身を除く): 22255160204

約数列:

[1, 2, 4, 5, 10, 20, 727, 1454, 2908, 3635, 7270, 14540, 1387823, 2775646, 5551292, 6939115, 13878230, 27756460, 1008947321, 2017894642, 4035789284, 5044736605, 10089473210, 20178946420]

約数ペア:

[(1, 20178946420), (2, 10089473210), (4, 5044736605), (5, 4035789284), (10, 2017894642), (20, 1008947321), (727, 27756460), (1454, 13878230), (2908, 6939115), (3635, 5551292), (7270, 2775646), (14540, 1387823)]