72440179

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1$

素因数の和:272

約数の個数: 48

約数和(自身を含む): 98496000

約数和(自身を除く): 26055821

約数列:

[1, 7, 17, 19, 23, 49, 119, 133, 161, 199, 323, 391, 437, 833, 931, 1127, 1393, 2261, 2737, 3059, 3383, 3781, 4577, 7429, 9751, 15827, 19159, 21413, 23681, 26467, 32039, 52003, 64277, 77809, 86963, 165767, 185269, 224273, 364021, 449939, 544663, 608741, 1478371, 3149573, 3812641, 4261187, 10348597, 72440179]

約数ペア:

[(1, 72440179), (7, 10348597), (17, 4261187), (19, 3812641), (23, 3149573), (49, 1478371), (119, 608741), (133, 544663), (161, 449939), (199, 364021), (323, 224273), (391, 185269), (437, 165767), (833, 86963), (931, 77809), (1127, 64277), (1393, 52003), (2261, 32039), (2737, 26467), (3059, 23681), (3383, 21413), (3781, 19159), (4577, 15827), (7429, 9751)]