128199856

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{113}}^1$

素因数の和:278

約数の個数: 80

約数和(自身を含む): 274294944

約数和(自身を除く): 146095088

約数列:

[1, 2, 4, 8, 16, 17, 34, 43, 68, 86, 97, 113, 136, 172, 194, 226, 272, 344, 388, 452, 688, 731, 776, 904, 1462, 1552, 1649, 1808, 1921, 2924, 3298, 3842, 4171, 4859, 5848, 6596, 7684, 8342, 9718, 10961, 11696, 13192, 15368, 16684, 19436, 21922, 26384, 30736, 33368, 38872, 43844, 66736, 70907, 77744, 82603, 87688, 141814, 165206, 175376, 186337, 283628, 330412, 372674, 471323, 567256, 660824, 745348, 942646, 1134512, 1321648, 1490696, 1885292, 2981392, 3770584, 7541168, 8012491, 16024982, 32049964, 64099928, 128199856]

約数ペア:

[(1, 128199856), (2, 64099928), (4, 32049964), (8, 16024982), (16, 8012491), (17, 7541168), (34, 3770584), (43, 2981392), (68, 1885292), (86, 1490696), (97, 1321648), (113, 1134512), (136, 942646), (172, 745348), (194, 660824), (226, 567256), (272, 471323), (344, 372674), (388, 330412), (452, 283628), (688, 186337), (731, 175376), (776, 165206), (904, 141814), (1462, 87688), (1552, 82603), (1649, 77744), (1808, 70907), (1921, 66736), (2924, 43844), (3298, 38872), (3842, 33368), (4171, 30736), (4859, 26384), (5848, 21922), (6596, 19436), (7684, 16684), (8342, 15368), (9718, 13192), (10961, 11696)]