30720495

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{613}}^1$

素因数の和:891

約数の個数: 32

約数和(自身を含む): 53226432

約数和(自身を除く): 22505937

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 257, 613, 771, 1285, 1839, 3065, 3341, 3855, 7969, 9195, 10023, 16705, 23907, 39845, 50115, 119535, 157541, 472623, 787705, 2048033, 2363115, 6144099, 10240165, 30720495]

約数ペア:

[(1, 30720495), (3, 10240165), (5, 6144099), (13, 2363115), (15, 2048033), (39, 787705), (65, 472623), (195, 157541), (257, 119535), (613, 50115), (771, 39845), (1285, 23907), (1839, 16705), (3065, 10023), (3341, 9195), (3855, 7969)]