87010025

素因数分解:

$5^2\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{311}}^1$

素因数の和:390

約数の個数: 36

約数和(自身を含む): 117921024

約数和(自身を除く): 30910999

約数列:

[1, 5, 19, 25, 31, 95, 155, 311, 361, 475, 589, 775, 1555, 1805, 2945, 5909, 7775, 9025, 9641, 11191, 14725, 29545, 48205, 55955, 112271, 147725, 183179, 241025, 279775, 561355, 915895, 2806775, 3480401, 4579475, 17402005, 87010025]

約数ペア:

[(1, 87010025), (5, 17402005), (19, 4579475), (25, 3480401), (31, 2806775), (95, 915895), (155, 561355), (311, 279775), (361, 241025), (475, 183179), (589, 147725), (775, 112271), (1555, 55955), (1805, 48205), (2945, 29545), (5909, 14725), (7775, 11191), (9025, 9641)]