205387440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{855781}}^1$

素因数の和:855797

約数の個数: 40

約数和(自身を含む): 636701808

約数和(自身を除く): 431314368

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 855781, 1711562, 2567343, 3423124, 4278905, 5134686, 6846248, 8557810, 10269372, 12836715, 13692496, 17115620, 20538744, 25673430, 34231240, 41077488, 51346860, 68462480, 102693720, 205387440]

約数ペア:

[(1, 205387440), (2, 102693720), (3, 68462480), (4, 51346860), (5, 41077488), (6, 34231240), (8, 25673430), (10, 20538744), (12, 17115620), (15, 13692496), (16, 12836715), (20, 10269372), (24, 8557810), (30, 6846248), (40, 5134686), (48, 4278905), (60, 3423124), (80, 2567343), (120, 1711562), (240, 855781)]