28400355

素因数分解:

$3^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2963}}^1$

素因数の和:3048

約数の個数: 32

約数和(自身を含む): 51217920

約数和(自身を除く): 22817565

約数列:

[1, 3, 5, 9, 15, 27, 45, 71, 135, 213, 355, 639, 1065, 1917, 2963, 3195, 8889, 9585, 14815, 26667, 44445, 80001, 133335, 210373, 400005, 631119, 1051865, 1893357, 3155595, 5680071, 9466785, 28400355]

約数ペア:

[(1, 28400355), (3, 9466785), (5, 5680071), (9, 3155595), (15, 1893357), (27, 1051865), (45, 631119), (71, 400005), (135, 210373), (213, 133335), (355, 80001), (639, 44445), (1065, 26667), (1917, 14815), (2963, 9585), (3195, 8889)]