221905960

素因数分解:

$2^3\times 5^1\times {\mathrm{283}}^1\times {\mathrm{19603}}^1$

素因数の和:19897

約数の個数: 32

約数和(自身を含む): 501078240

約数和(自身を除く): 279172280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 283, 566, 1132, 1415, 2264, 2830, 5660, 11320, 19603, 39206, 78412, 98015, 156824, 196030, 392060, 784120, 5547649, 11095298, 22190596, 27738245, 44381192, 55476490, 110952980, 221905960]

約数ペア:

[(1, 221905960), (2, 110952980), (4, 55476490), (5, 44381192), (8, 27738245), (10, 22190596), (20, 11095298), (40, 5547649), (283, 784120), (566, 392060), (1132, 196030), (1415, 156824), (2264, 98015), (2830, 78412), (5660, 39206), (11320, 19603)]