81283864

素因数分解:

$2^3\times {\mathrm{67}}^1\times {\mathrm{139}}^1\times {\mathrm{1091}}^1$

素因数の和:1303

約数の個数: 32

約数和(自身を含む): 155937600

約数和(自身を除く): 74653736

約数列:

[1, 2, 4, 8, 67, 134, 139, 268, 278, 536, 556, 1091, 1112, 2182, 4364, 8728, 9313, 18626, 37252, 73097, 74504, 146194, 151649, 292388, 303298, 584776, 606596, 1213192, 10160483, 20320966, 40641932, 81283864]

約数ペア:

[(1, 81283864), (2, 40641932), (4, 20320966), (8, 10160483), (67, 1213192), (134, 606596), (139, 584776), (268, 303298), (278, 292388), (536, 151649), (556, 146194), (1091, 74504), (1112, 73097), (2182, 37252), (4364, 18626), (8728, 9313)]