209955845

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{269}}^1\times {\mathrm{617}}^1$

素因数の和:925

約数の個数: 32

約数和(自身を含む): 288334080

約数和(自身を除く): 78378235

約数列:

[1, 5, 11, 23, 55, 115, 253, 269, 617, 1265, 1345, 2959, 3085, 6187, 6787, 14191, 14795, 30935, 33935, 68057, 70955, 156101, 165973, 340285, 780505, 829865, 1825703, 3817379, 9128515, 19086895, 41991169, 209955845]

約数ペア:

[(1, 209955845), (5, 41991169), (11, 19086895), (23, 9128515), (55, 3817379), (115, 1825703), (253, 829865), (269, 780505), (617, 340285), (1265, 165973), (1345, 156101), (2959, 70955), (3085, 68057), (6187, 33935), (6787, 30935), (14191, 14795)]