399721504

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^2\times {\mathrm{10559}}^1$

素因数の和:10602

約数の個数: 72

約数和(自身を含む): 973969920

約数和(自身を除く): 574248416

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 91, 104, 112, 169, 182, 208, 224, 338, 364, 416, 676, 728, 1183, 1352, 1456, 2366, 2704, 2912, 4732, 5408, 9464, 10559, 18928, 21118, 37856, 42236, 73913, 84472, 137267, 147826, 168944, 274534, 295652, 337888, 549068, 591304, 960869, 1098136, 1182608, 1784471, 1921738, 2196272, 2365216, 3568942, 3843476, 4392544, 7137884, 7686952, 12491297, 14275768, 15373904, 24982594, 28551536, 30747808, 49965188, 57103072, 99930376, 199860752, 399721504]

約数ペア:

[(1, 399721504), (2, 199860752), (4, 99930376), (7, 57103072), (8, 49965188), (13, 30747808), (14, 28551536), (16, 24982594), (26, 15373904), (28, 14275768), (32, 12491297), (52, 7686952), (56, 7137884), (91, 4392544), (104, 3843476), (112, 3568942), (169, 2365216), (182, 2196272), (208, 1921738), (224, 1784471), (338, 1182608), (364, 1098136), (416, 960869), (676, 591304), (728, 549068), (1183, 337888), (1352, 295652), (1456, 274534), (2366, 168944), (2704, 147826), (2912, 137267), (4732, 84472), (5408, 73913), (9464, 42236), (10559, 37856), (18928, 21118)]