28389735

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{691}}^1$

素因数の和:796

約数の個数: 48

約数和(自身を含む): 54407808

約数和(自身を除く): 26018073

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 83, 99, 165, 249, 415, 495, 691, 747, 913, 1245, 2073, 2739, 3455, 3735, 4565, 6219, 7601, 8217, 10365, 13695, 22803, 31095, 38005, 41085, 57353, 68409, 114015, 172059, 286765, 342045, 516177, 630883, 860295, 1892649, 2580885, 3154415, 5677947, 9463245, 28389735]

約数ペア:

[(1, 28389735), (3, 9463245), (5, 5677947), (9, 3154415), (11, 2580885), (15, 1892649), (33, 860295), (45, 630883), (55, 516177), (83, 342045), (99, 286765), (165, 172059), (249, 114015), (415, 68409), (495, 57353), (691, 41085), (747, 38005), (913, 31095), (1245, 22803), (2073, 13695), (2739, 10365), (3455, 8217), (3735, 7601), (4565, 6219)]