47779775

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:204

約数の個数: 48

約数和(自身を含む): 67808160

約数和(自身を除く): 20028385

約数列:

[1, 5, 17, 19, 25, 61, 85, 95, 97, 305, 323, 425, 475, 485, 1037, 1159, 1525, 1615, 1649, 1843, 2425, 5185, 5795, 5917, 8075, 8245, 9215, 19703, 25925, 28975, 29585, 31331, 41225, 46075, 98515, 100589, 112423, 147925, 156655, 492575, 502945, 562115, 783275, 1911191, 2514725, 2810575, 9555955, 47779775]

約数ペア:

[(1, 47779775), (5, 9555955), (17, 2810575), (19, 2514725), (25, 1911191), (61, 783275), (85, 562115), (95, 502945), (97, 492575), (305, 156655), (323, 147925), (425, 112423), (475, 100589), (485, 98515), (1037, 46075), (1159, 41225), (1525, 31331), (1615, 29585), (1649, 28975), (1843, 25925), (2425, 19703), (5185, 9215), (5795, 8245), (5917, 8075)]