1267984

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1$

素因数の和:167

約数の個数: 40

約数和(自身を含む): 2673440

約数和(自身を除く): 1405456

約数列:

[1, 2, 4, 8, 16, 19, 38, 43, 76, 86, 97, 152, 172, 194, 304, 344, 388, 688, 776, 817, 1552, 1634, 1843, 3268, 3686, 4171, 6536, 7372, 8342, 13072, 14744, 16684, 29488, 33368, 66736, 79249, 158498, 316996, 633992, 1267984]

約数ペア:

[(1, 1267984), (2, 633992), (4, 316996), (8, 158498), (16, 79249), (19, 66736), (38, 33368), (43, 29488), (76, 16684), (86, 14744), (97, 13072), (152, 8342), (172, 7372), (194, 6536), (304, 4171), (344, 3686), (388, 3268), (688, 1843), (776, 1634), (817, 1552)]