71748640

素因数分解:

$2^5\times 5^1\times {\mathrm{509}}^1\times {\mathrm{881}}^1$

素因数の和:1405

約数の個数: 48

約数和(自身を含む): 170031960

約数和(自身を除く): 98283320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 509, 881, 1018, 1762, 2036, 2545, 3524, 4072, 4405, 5090, 7048, 8144, 8810, 10180, 14096, 16288, 17620, 20360, 28192, 35240, 40720, 70480, 81440, 140960, 448429, 896858, 1793716, 2242145, 3587432, 4484290, 7174864, 8968580, 14349728, 17937160, 35874320, 71748640]

約数ペア:

[(1, 71748640), (2, 35874320), (4, 17937160), (5, 14349728), (8, 8968580), (10, 7174864), (16, 4484290), (20, 3587432), (32, 2242145), (40, 1793716), (80, 896858), (160, 448429), (509, 140960), (881, 81440), (1018, 70480), (1762, 40720), (2036, 35240), (2545, 28192), (3524, 20360), (4072, 17620), (4405, 16288), (5090, 14096), (7048, 10180), (8144, 8810)]