28700685

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{691}}^1$

素因数の和:786

約数の個数: 48

約数和(自身を含む): 54407808

約数和(自身を除く): 25707123

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 71, 117, 195, 213, 355, 585, 639, 691, 923, 1065, 2073, 2769, 3195, 3455, 4615, 6219, 8307, 8983, 10365, 13845, 26949, 31095, 41535, 44915, 49061, 80847, 134745, 147183, 245305, 404235, 441549, 637793, 735915, 1913379, 2207745, 3188965, 5740137, 9566895, 28700685]

約数ペア:

[(1, 28700685), (3, 9566895), (5, 5740137), (9, 3188965), (13, 2207745), (15, 1913379), (39, 735915), (45, 637793), (65, 441549), (71, 404235), (117, 245305), (195, 147183), (213, 134745), (355, 80847), (585, 49061), (639, 44915), (691, 41535), (923, 31095), (1065, 26949), (2073, 13845), (2769, 10365), (3195, 8983), (3455, 8307), (4615, 6219)]