16826875

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1$

素因数の和:161

約数の個数: 40

約数和(自身を含む): 24054800

約数和(自身を除く): 7227925

約数列:

[1, 5, 13, 19, 25, 65, 95, 109, 125, 247, 325, 475, 545, 625, 1235, 1417, 1625, 2071, 2375, 2725, 6175, 7085, 8125, 10355, 11875, 13625, 26923, 30875, 35425, 51775, 68125, 134615, 154375, 177125, 258875, 673075, 885625, 1294375, 3365375, 16826875]

約数ペア:

[(1, 16826875), (5, 3365375), (13, 1294375), (19, 885625), (25, 673075), (65, 258875), (95, 177125), (109, 154375), (125, 134615), (247, 68125), (325, 51775), (475, 35425), (545, 30875), (625, 26923), (1235, 13625), (1417, 11875), (1625, 10355), (2071, 8125), (2375, 7085), (2725, 6175)]