81620460

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{50383}}^1$

素因数の和:50404

約数の個数: 60

約数和(自身を含む): 256051488

約数和(自身を除く): 174431028

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 50383, 100766, 151149, 201532, 251915, 302298, 453447, 503830, 604596, 755745, 906894, 1007660, 1360341, 1511490, 1813788, 2267235, 2720682, 3022980, 4081023, 4534470, 5441364, 6801705, 8162046, 9068940, 13603410, 16324092, 20405115, 27206820, 40810230, 81620460]

約数ペア:

[(1, 81620460), (2, 40810230), (3, 27206820), (4, 20405115), (5, 16324092), (6, 13603410), (9, 9068940), (10, 8162046), (12, 6801705), (15, 5441364), (18, 4534470), (20, 4081023), (27, 3022980), (30, 2720682), (36, 2267235), (45, 1813788), (54, 1511490), (60, 1360341), (81, 1007660), (90, 906894), (108, 755745), (135, 604596), (162, 503830), (180, 453447), (270, 302298), (324, 251915), (405, 201532), (540, 151149), (810, 100766), (1620, 50383)]