261657365

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{281}}^1$

素因数の和:461

約数の個数: 32

約数和(自身を含む): 332335872

約数和(自身を除く): 70678507

約数列:

[1, 5, 43, 61, 71, 215, 281, 305, 355, 1405, 2623, 3053, 4331, 12083, 13115, 15265, 17141, 19951, 21655, 60415, 85705, 99755, 186233, 737063, 857893, 931165, 1217011, 3685315, 4289465, 6085055, 52331473, 261657365]

約数ペア:

[(1, 261657365), (5, 52331473), (43, 6085055), (61, 4289465), (71, 3685315), (215, 1217011), (281, 931165), (305, 857893), (355, 737063), (1405, 186233), (2623, 99755), (3053, 85705), (4331, 60415), (12083, 21655), (13115, 19951), (15265, 17141)]