261673408

素因数分解:

$2^6\times {\mathrm{61}}^1\times {\mathrm{97}}^1\times {\mathrm{691}}^1$

素因数の和:861

約数の個数: 56

約数和(自身を含む): 533983184

約数和(自身を除く): 272309776

約数列:

[1, 2, 4, 8, 16, 32, 61, 64, 97, 122, 194, 244, 388, 488, 691, 776, 976, 1382, 1552, 1952, 2764, 3104, 3904, 5528, 5917, 6208, 11056, 11834, 22112, 23668, 42151, 44224, 47336, 67027, 84302, 94672, 134054, 168604, 189344, 268108, 337208, 378688, 536216, 674416, 1072432, 1348832, 2144864, 2697664, 4088647, 4289728, 8177294, 16354588, 32709176, 65418352, 130836704, 261673408]

約数ペア:

[(1, 261673408), (2, 130836704), (4, 65418352), (8, 32709176), (16, 16354588), (32, 8177294), (61, 4289728), (64, 4088647), (97, 2697664), (122, 2144864), (194, 1348832), (244, 1072432), (388, 674416), (488, 536216), (691, 378688), (776, 337208), (976, 268108), (1382, 189344), (1552, 168604), (1952, 134054), (2764, 94672), (3104, 84302), (3904, 67027), (5528, 47336), (5917, 44224), (6208, 42151), (11056, 23668), (11834, 22112)]