68709515

素因数分解:

$5^1\times 7^2\times {\mathrm{107}}^1\times {\mathrm{2621}}^1$

素因数の和:2747

約数の個数: 24

約数和(自身を含む): 96846192

約数和(自身を除く): 28136677

約数列:

[1, 5, 7, 35, 49, 107, 245, 535, 749, 2621, 3745, 5243, 13105, 18347, 26215, 91735, 128429, 280447, 642145, 1402235, 1963129, 9815645, 13741903, 68709515]

約数ペア:

[(1, 68709515), (5, 13741903), (7, 9815645), (35, 1963129), (49, 1402235), (107, 642145), (245, 280447), (535, 128429), (749, 91735), (2621, 26215), (3745, 18347), (5243, 13105)]