25215295

素因数分解:

$5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1$

素因数の和:295

約数の個数: 32

約数和(自身を含む): 35804160

約数和(自身を除く): 10588865

約数列:

[1, 5, 7, 35, 71, 73, 139, 355, 365, 497, 511, 695, 973, 2485, 2555, 4865, 5183, 9869, 10147, 25915, 36281, 49345, 50735, 69083, 71029, 181405, 345415, 355145, 720437, 3602185, 5043059, 25215295]

約数ペア:

[(1, 25215295), (5, 5043059), (7, 3602185), (35, 720437), (71, 355145), (73, 345415), (139, 181405), (355, 71029), (365, 69083), (497, 50735), (511, 49345), (695, 36281), (973, 25915), (2485, 10147), (2555, 9869), (4865, 5183)]