20311960

素因数分解:

$2^3\times 5^1\times {\mathrm{227}}^1\times {\mathrm{2237}}^1$

素因数の和:2475

約数の個数: 32

約数和(自身を含む): 45923760

約数和(自身を除く): 25611800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 227, 454, 908, 1135, 1816, 2237, 2270, 4474, 4540, 8948, 9080, 11185, 17896, 22370, 44740, 89480, 507799, 1015598, 2031196, 2538995, 4062392, 5077990, 10155980, 20311960]

約数ペア:

[(1, 20311960), (2, 10155980), (4, 5077990), (5, 4062392), (8, 2538995), (10, 2031196), (20, 1015598), (40, 507799), (227, 89480), (454, 44740), (908, 22370), (1135, 17896), (1816, 11185), (2237, 9080), (2270, 8948), (4474, 4540)]