128400844

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{20407}}^1$

素因数の和:20446

約数の個数: 36

約数和(自身を含む): 265997872

約数和(自身を除く): 137597028

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 121, 143, 242, 286, 484, 572, 1573, 3146, 6292, 20407, 40814, 81628, 224477, 265291, 448954, 530582, 897908, 1061164, 2469247, 2918201, 4938494, 5836402, 9876988, 11672804, 32100211, 64200422, 128400844]

約数ペア:

[(1, 128400844), (2, 64200422), (4, 32100211), (11, 11672804), (13, 9876988), (22, 5836402), (26, 4938494), (44, 2918201), (52, 2469247), (121, 1061164), (143, 897908), (242, 530582), (286, 448954), (484, 265291), (572, 224477), (1573, 81628), (3146, 40814), (6292, 20407)]