1285127985

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{1009}}^1$

素因数の和:1186

約数の個数: 64

約数和(自身を含む): 2239776000

約数和(自身を除く): 954648015

約数列:

[1, 3, 5, 15, 19, 41, 57, 95, 109, 123, 205, 285, 327, 545, 615, 779, 1009, 1635, 2071, 2337, 3027, 3895, 4469, 5045, 6213, 10355, 11685, 13407, 15135, 19171, 22345, 31065, 41369, 57513, 67035, 84911, 95855, 109981, 124107, 206845, 254733, 287565, 329943, 424555, 549905, 620535, 786011, 1273665, 1649715, 2089639, 2358033, 3930055, 4509221, 6268917, 10448195, 11790165, 13527663, 22546105, 31344585, 67638315, 85675199, 257025597, 428375995, 1285127985]

約数ペア:

[(1, 1285127985), (3, 428375995), (5, 257025597), (15, 85675199), (19, 67638315), (41, 31344585), (57, 22546105), (95, 13527663), (109, 11790165), (123, 10448195), (205, 6268917), (285, 4509221), (327, 3930055), (545, 2358033), (615, 2089639), (779, 1649715), (1009, 1273665), (1635, 786011), (2071, 620535), (2337, 549905), (3027, 424555), (3895, 329943), (4469, 287565), (5045, 254733), (6213, 206845), (10355, 124107), (11685, 109981), (13407, 95855), (15135, 84911), (19171, 67035), (22345, 57513), (31065, 41369)]