40257581

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{491}}^1$

素因数の和:581

約数の個数: 32

約数和(自身を含む): 53561088

約数和(自身を除く): 13303507

約数列:

[1, 7, 13, 17, 53, 91, 119, 221, 371, 491, 689, 901, 1547, 3437, 4823, 6307, 6383, 8347, 11713, 26023, 44681, 58429, 81991, 108511, 182161, 338299, 442391, 759577, 2368093, 3096737, 5751083, 40257581]

約数ペア:

[(1, 40257581), (7, 5751083), (13, 3096737), (17, 2368093), (53, 759577), (91, 442391), (119, 338299), (221, 182161), (371, 108511), (491, 81991), (689, 58429), (901, 44681), (1547, 26023), (3437, 11713), (4823, 8347), (6307, 6383)]