19628320

素因数分解:

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

素因数の和:1913

約数の個数: 48

約数和(自身を含む): 47089728

約数和(自身を除く): 27461408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 67, 80, 134, 160, 268, 335, 536, 670, 1072, 1340, 1831, 2144, 2680, 3662, 5360, 7324, 9155, 10720, 14648, 18310, 29296, 36620, 58592, 73240, 122677, 146480, 245354, 292960, 490708, 613385, 981416, 1226770, 1962832, 2453540, 3925664, 4907080, 9814160, 19628320]

約数ペア:

[(1, 19628320), (2, 9814160), (4, 4907080), (5, 3925664), (8, 2453540), (10, 1962832), (16, 1226770), (20, 981416), (32, 613385), (40, 490708), (67, 292960), (80, 245354), (134, 146480), (160, 122677), (268, 73240), (335, 58592), (536, 36620), (670, 29296), (1072, 18310), (1340, 14648), (1831, 10720), (2144, 9155), (2680, 7324), (3662, 5360)]