20261752

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1$

素因数の和:308

約数の個数: 64

約数和(自身を含む): 46368000

約数和(自身を除く): 26106248

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 133, 137, 139, 152, 266, 274, 278, 532, 548, 556, 959, 973, 1064, 1096, 1112, 1918, 1946, 2603, 2641, 3836, 3892, 5206, 5282, 7672, 7784, 10412, 10564, 18221, 18487, 19043, 20824, 21128, 36442, 36974, 38086, 72884, 73948, 76172, 133301, 145768, 147896, 152344, 266602, 361817, 533204, 723634, 1066408, 1447268, 2532719, 2894536, 5065438, 10130876, 20261752]

約数ペア:

[(1, 20261752), (2, 10130876), (4, 5065438), (7, 2894536), (8, 2532719), (14, 1447268), (19, 1066408), (28, 723634), (38, 533204), (56, 361817), (76, 266602), (133, 152344), (137, 147896), (139, 145768), (152, 133301), (266, 76172), (274, 73948), (278, 72884), (532, 38086), (548, 36974), (556, 36442), (959, 21128), (973, 20824), (1064, 19043), (1096, 18487), (1112, 18221), (1918, 10564), (1946, 10412), (2603, 7784), (2641, 7672), (3836, 5282), (3892, 5206)]