20035840

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1423}}^1$

素因数の和:1455

約数の個数: 72

約数和(自身を含む): 52391808

約数和(自身を除く): 32355968

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 256, 320, 352, 440, 640, 704, 880, 1280, 1408, 1423, 1760, 2816, 2846, 3520, 5692, 7040, 7115, 11384, 14080, 14230, 15653, 22768, 28460, 31306, 45536, 56920, 62612, 78265, 91072, 113840, 125224, 156530, 182144, 227680, 250448, 313060, 364288, 455360, 500896, 626120, 910720, 1001792, 1252240, 1821440, 2003584, 2504480, 4007168, 5008960, 10017920, 20035840]

約数ペア:

[(1, 20035840), (2, 10017920), (4, 5008960), (5, 4007168), (8, 2504480), (10, 2003584), (11, 1821440), (16, 1252240), (20, 1001792), (22, 910720), (32, 626120), (40, 500896), (44, 455360), (55, 364288), (64, 313060), (80, 250448), (88, 227680), (110, 182144), (128, 156530), (160, 125224), (176, 113840), (220, 91072), (256, 78265), (320, 62612), (352, 56920), (440, 45536), (640, 31306), (704, 28460), (880, 22768), (1280, 15653), (1408, 14230), (1423, 14080), (1760, 11384), (2816, 7115), (2846, 7040), (3520, 5692)]