15338840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{491}}^1$

素因数の和:584

約数の個数: 64

約数和(自身を含む): 38257920

約数和(自身を除く): 22919080

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 71, 88, 110, 142, 220, 284, 355, 440, 491, 568, 710, 781, 982, 1420, 1562, 1964, 2455, 2840, 3124, 3905, 3928, 4910, 5401, 6248, 7810, 9820, 10802, 15620, 19640, 21604, 27005, 31240, 34861, 43208, 54010, 69722, 108020, 139444, 174305, 216040, 278888, 348610, 383471, 697220, 766942, 1394440, 1533884, 1917355, 3067768, 3834710, 7669420, 15338840]

約数ペア:

[(1, 15338840), (2, 7669420), (4, 3834710), (5, 3067768), (8, 1917355), (10, 1533884), (11, 1394440), (20, 766942), (22, 697220), (40, 383471), (44, 348610), (55, 278888), (71, 216040), (88, 174305), (110, 139444), (142, 108020), (220, 69722), (284, 54010), (355, 43208), (440, 34861), (491, 31240), (568, 27005), (710, 21604), (781, 19640), (982, 15620), (1420, 10802), (1562, 9820), (1964, 7810), (2455, 6248), (2840, 5401), (3124, 4910), (3905, 3928)]