159803995

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{47}}^1\times {\mathrm{181}}^1$

素因数の和:280

約数の個数: 48

約数和(自身を含む): 225283968

約数和(自身を除く): 65479973

約数列:

[1, 5, 13, 17, 47, 65, 85, 181, 221, 235, 289, 611, 799, 905, 1105, 1445, 2353, 3055, 3077, 3757, 3995, 8507, 10387, 11765, 13583, 15385, 18785, 40001, 42535, 51935, 52309, 67915, 110591, 144619, 176579, 200005, 261545, 552955, 680017, 723095, 882895, 1880047, 2458523, 3400085, 9400235, 12292615, 31960799, 159803995]

約数ペア:

[(1, 159803995), (5, 31960799), (13, 12292615), (17, 9400235), (47, 3400085), (65, 2458523), (85, 1880047), (181, 882895), (221, 723095), (235, 680017), (289, 552955), (611, 261545), (799, 200005), (905, 176579), (1105, 144619), (1445, 110591), (2353, 67915), (3055, 52309), (3077, 51935), (3757, 42535), (3995, 40001), (8507, 18785), (10387, 15385), (11765, 13583)]