2149778825

素因数分解:

$5^2\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{353}}^1$

素因数の和:554

約数の個数: 48

約数和(自身を含む): 2806534656

約数和(自身を除く): 656755831

約数列:

[1, 5, 25, 47, 71, 73, 235, 353, 355, 365, 1175, 1765, 1775, 1825, 3337, 3431, 5183, 8825, 16591, 16685, 17155, 25063, 25769, 25915, 82955, 83425, 85775, 125315, 128845, 129575, 243601, 414775, 626575, 644225, 1177961, 1211143, 1218005, 1829599, 5889805, 6055715, 6090025, 9147995, 29449025, 30278575, 45739975, 85991153, 429955765, 2149778825]

約数ペア:

[(1, 2149778825), (5, 429955765), (25, 85991153), (47, 45739975), (71, 30278575), (73, 29449025), (235, 9147995), (353, 6090025), (355, 6055715), (365, 5889805), (1175, 1829599), (1765, 1218005), (1775, 1211143), (1825, 1177961), (3337, 644225), (3431, 626575), (5183, 414775), (8825, 243601), (16591, 129575), (16685, 128845), (17155, 125315), (25063, 85775), (25769, 83425), (25915, 82955)]