30781680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{128257}}^1$

素因数の和:128273

約数の個数: 40

約数和(自身を含む): 95423952

約数和(自身を除く): 64642272

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 128257, 256514, 384771, 513028, 641285, 769542, 1026056, 1282570, 1539084, 1923855, 2052112, 2565140, 3078168, 3847710, 5130280, 6156336, 7695420, 10260560, 15390840, 30781680]

約数ペア:

[(1, 30781680), (2, 15390840), (3, 10260560), (4, 7695420), (5, 6156336), (6, 5130280), (8, 3847710), (10, 3078168), (12, 2565140), (15, 2052112), (16, 1923855), (20, 1539084), (24, 1282570), (30, 1026056), (40, 769542), (48, 641285), (60, 513028), (80, 384771), (120, 256514), (240, 128257)]