15689240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{409}}^1$

素因数の和:564

約数の個数: 64

約数和(自身を含む): 40737600

約数和(自身を除く): 25048360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 137, 140, 274, 280, 409, 548, 685, 818, 959, 1096, 1370, 1636, 1918, 2045, 2740, 2863, 3272, 3836, 4090, 4795, 5480, 5726, 7672, 8180, 9590, 11452, 14315, 16360, 19180, 22904, 28630, 38360, 56033, 57260, 112066, 114520, 224132, 280165, 392231, 448264, 560330, 784462, 1120660, 1568924, 1961155, 2241320, 3137848, 3922310, 7844620, 15689240]

約数ペア:

[(1, 15689240), (2, 7844620), (4, 3922310), (5, 3137848), (7, 2241320), (8, 1961155), (10, 1568924), (14, 1120660), (20, 784462), (28, 560330), (35, 448264), (40, 392231), (56, 280165), (70, 224132), (137, 114520), (140, 112066), (274, 57260), (280, 56033), (409, 38360), (548, 28630), (685, 22904), (818, 19180), (959, 16360), (1096, 14315), (1370, 11452), (1636, 9590), (1918, 8180), (2045, 7672), (2740, 5726), (2863, 5480), (3272, 4795), (3836, 4090)]