251117825

素因数分解:

$5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{1129}}^1$

素因数の和:1218

約数の個数: 48

約数和(自身を含む): 376642560

約数和(自身を除く): 125524735

約数列:

[1, 5, 7, 25, 31, 35, 41, 155, 175, 205, 217, 287, 775, 1025, 1085, 1129, 1271, 1435, 5425, 5645, 6355, 7175, 7903, 8897, 28225, 31775, 34999, 39515, 44485, 46289, 174995, 197575, 222425, 231445, 244993, 324023, 874975, 1157225, 1224965, 1434959, 1620115, 6124825, 7174795, 8100575, 10044713, 35873975, 50223565, 251117825]

約数ペア:

[(1, 251117825), (5, 50223565), (7, 35873975), (25, 10044713), (31, 8100575), (35, 7174795), (41, 6124825), (155, 1620115), (175, 1434959), (205, 1224965), (217, 1157225), (287, 874975), (775, 324023), (1025, 244993), (1085, 231445), (1129, 222425), (1271, 197575), (1435, 174995), (5425, 46289), (5645, 44485), (6355, 39515), (7175, 34999), (7903, 31775), (8897, 28225)]