81210125

素因数分解:

$5^3\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{601}}^1$

素因数の和:686

約数の個数: 32

約数和(自身を含む): 108186624

約数和(自身を除く): 26976499

約数列:

[1, 5, 23, 25, 47, 115, 125, 235, 575, 601, 1081, 1175, 2875, 3005, 5405, 5875, 13823, 15025, 27025, 28247, 69115, 75125, 135125, 141235, 345575, 649681, 706175, 1727875, 3248405, 3530875, 16242025, 81210125]

約数ペア:

[(1, 81210125), (5, 16242025), (23, 3530875), (25, 3248405), (47, 1727875), (115, 706175), (125, 649681), (235, 345575), (575, 141235), (601, 135125), (1081, 75125), (1175, 69115), (2875, 28247), (3005, 27025), (5405, 15025), (5875, 13823)]