128297728

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2029}}^1$

素因数の和:2077

約数の個数: 72

約数和(自身を含む): 290452400

約数和(自身を除く): 162154672

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 38, 52, 64, 76, 104, 128, 152, 208, 247, 256, 304, 416, 494, 608, 832, 988, 1216, 1664, 1976, 2029, 2432, 3328, 3952, 4058, 4864, 7904, 8116, 15808, 16232, 26377, 31616, 32464, 38551, 52754, 63232, 64928, 77102, 105508, 129856, 154204, 211016, 259712, 308408, 422032, 501163, 519424, 616816, 844064, 1002326, 1233632, 1688128, 2004652, 2467264, 3376256, 4009304, 4934528, 6752512, 8018608, 9869056, 16037216, 32074432, 64148864, 128297728]

約数ペア:

[(1, 128297728), (2, 64148864), (4, 32074432), (8, 16037216), (13, 9869056), (16, 8018608), (19, 6752512), (26, 4934528), (32, 4009304), (38, 3376256), (52, 2467264), (64, 2004652), (76, 1688128), (104, 1233632), (128, 1002326), (152, 844064), (208, 616816), (247, 519424), (256, 501163), (304, 422032), (416, 308408), (494, 259712), (608, 211016), (832, 154204), (988, 129856), (1216, 105508), (1664, 77102), (1976, 64928), (2029, 63232), (2432, 52754), (3328, 38551), (3952, 32464), (4058, 31616), (4864, 26377), (7904, 16232), (8116, 15808)]