12788425

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{109}}^1$

素因数の和:170

約数の個数: 36

約数和(自身を含む): 18188940

約数和(自身を除く): 5400515

約数列:

[1, 5, 13, 19, 25, 65, 95, 109, 247, 325, 361, 475, 545, 1235, 1417, 1805, 2071, 2725, 4693, 6175, 7085, 9025, 10355, 23465, 26923, 35425, 39349, 51775, 117325, 134615, 196745, 511537, 673075, 983725, 2557685, 12788425]

約数ペア:

[(1, 12788425), (5, 2557685), (13, 983725), (19, 673075), (25, 511537), (65, 196745), (95, 134615), (109, 117325), (247, 51775), (325, 39349), (361, 35425), (475, 26923), (545, 23465), (1235, 10355), (1417, 9025), (1805, 7085), (2071, 6175), (2725, 4693)]