72155840

素因数分解:

$2^6\times 5^1\times {\mathrm{443}}^1\times {\mathrm{509}}^1$

素因数の和:969

約数の個数: 56

約数和(自身を含む): 172547280

約数和(自身を除く): 100391440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 443, 509, 886, 1018, 1772, 2036, 2215, 2545, 3544, 4072, 4430, 5090, 7088, 8144, 8860, 10180, 14176, 16288, 17720, 20360, 28352, 32576, 35440, 40720, 70880, 81440, 141760, 162880, 225487, 450974, 901948, 1127435, 1803896, 2254870, 3607792, 4509740, 7215584, 9019480, 14431168, 18038960, 36077920, 72155840]

約数ペア:

[(1, 72155840), (2, 36077920), (4, 18038960), (5, 14431168), (8, 9019480), (10, 7215584), (16, 4509740), (20, 3607792), (32, 2254870), (40, 1803896), (64, 1127435), (80, 901948), (160, 450974), (320, 225487), (443, 162880), (509, 141760), (886, 81440), (1018, 70880), (1772, 40720), (2036, 35440), (2215, 32576), (2545, 28352), (3544, 20360), (4072, 17720), (4430, 16288), (5090, 14176), (7088, 10180), (8144, 8860)]