78513280

素因数分解:

$2^7\times 5^1\times {\mathrm{67}}^1\times {\mathrm{1831}}^1$

素因数の和:1917

約数の個数: 64

約数和(自身を含む): 190601280

約数和(自身を除く): 112088000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 67, 80, 128, 134, 160, 268, 320, 335, 536, 640, 670, 1072, 1340, 1831, 2144, 2680, 3662, 4288, 5360, 7324, 8576, 9155, 10720, 14648, 18310, 21440, 29296, 36620, 42880, 58592, 73240, 117184, 122677, 146480, 234368, 245354, 292960, 490708, 585920, 613385, 981416, 1171840, 1226770, 1962832, 2453540, 3925664, 4907080, 7851328, 9814160, 15702656, 19628320, 39256640, 78513280]

約数ペア:

[(1, 78513280), (2, 39256640), (4, 19628320), (5, 15702656), (8, 9814160), (10, 7851328), (16, 4907080), (20, 3925664), (32, 2453540), (40, 1962832), (64, 1226770), (67, 1171840), (80, 981416), (128, 613385), (134, 585920), (160, 490708), (268, 292960), (320, 245354), (335, 234368), (536, 146480), (640, 122677), (670, 117184), (1072, 73240), (1340, 58592), (1831, 42880), (2144, 36620), (2680, 29296), (3662, 21440), (4288, 18310), (5360, 14648), (7324, 10720), (8576, 9155)]