20161460920

素因数分解:

$2^3\times 5^1\times {\mathrm{125789}}^1\times {\mathrm{4007}}^1$

素因数の和:129807

約数の個数: 32

約数和(自身を含む): 45374968800

約数和(自身を除く): 25213507880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4007, 8014, 16028, 20035, 32056, 40070, 80140, 125789, 160280, 251578, 503156, 628945, 1006312, 1257890, 2515780, 5031560, 504036523, 1008073046, 2016146092, 2520182615, 4032292184, 5040365230, 10080730460, 20161460920]

約数ペア:

[(1, 20161460920), (2, 10080730460), (4, 5040365230), (5, 4032292184), (8, 2520182615), (10, 2016146092), (20, 1008073046), (40, 504036523), (4007, 5031560), (8014, 2515780), (16028, 1257890), (20035, 1006312), (32056, 628945), (40070, 503156), (80140, 251578), (125789, 160280)]