81333056

素因数分解:

$2^6\times 7^1\times {\mathrm{71}}^1\times {\mathrm{2557}}^1$

素因数の和:2647

約数の個数: 56

約数和(自身を含む): 187122816

約数和(自身を除く): 105789760

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 71, 112, 142, 224, 284, 448, 497, 568, 994, 1136, 1988, 2272, 2557, 3976, 4544, 5114, 7952, 10228, 15904, 17899, 20456, 31808, 35798, 40912, 71596, 81824, 143192, 163648, 181547, 286384, 363094, 572768, 726188, 1145536, 1270829, 1452376, 2541658, 2904752, 5083316, 5809504, 10166632, 11619008, 20333264, 40666528, 81333056]

約数ペア:

[(1, 81333056), (2, 40666528), (4, 20333264), (7, 11619008), (8, 10166632), (14, 5809504), (16, 5083316), (28, 2904752), (32, 2541658), (56, 1452376), (64, 1270829), (71, 1145536), (112, 726188), (142, 572768), (224, 363094), (284, 286384), (448, 181547), (497, 163648), (568, 143192), (994, 81824), (1136, 71596), (1988, 40912), (2272, 35798), (2557, 31808), (3976, 20456), (4544, 17899), (5114, 15904), (7952, 10228)]