20059155

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{809}}^1$

素因数の和:868

約数の個数: 48

約数和(自身を含む): 37908000

約数和(自身を除く): 17848845

約数列:

[1, 3, 5, 9, 15, 19, 29, 45, 57, 87, 95, 145, 171, 261, 285, 435, 551, 809, 855, 1305, 1653, 2427, 2755, 4045, 4959, 7281, 8265, 12135, 15371, 23461, 24795, 36405, 46113, 70383, 76855, 117305, 138339, 211149, 230565, 351915, 445759, 691695, 1055745, 1337277, 2228795, 4011831, 6686385, 20059155]

約数ペア:

[(1, 20059155), (3, 6686385), (5, 4011831), (9, 2228795), (15, 1337277), (19, 1055745), (29, 691695), (45, 445759), (57, 351915), (87, 230565), (95, 211149), (145, 138339), (171, 117305), (261, 76855), (285, 70383), (435, 46113), (551, 36405), (809, 24795), (855, 23461), (1305, 15371), (1653, 12135), (2427, 8265), (2755, 7281), (4045, 4959)]