15390840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{128257}}^1$

素因数の和:128271

約数の個数: 32

約数和(自身を含む): 46172880

約数和(自身を除く): 30782040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 128257, 256514, 384771, 513028, 641285, 769542, 1026056, 1282570, 1539084, 1923855, 2565140, 3078168, 3847710, 5130280, 7695420, 15390840]

約数ペア:

[(1, 15390840), (2, 7695420), (3, 5130280), (4, 3847710), (5, 3078168), (6, 2565140), (8, 1923855), (10, 1539084), (12, 1282570), (15, 1026056), (20, 769542), (24, 641285), (30, 513028), (40, 384771), (60, 256514), (120, 128257)]