31187775

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{401}}^1$

素因数の和:492

約数の個数: 48

約数和(自身を含む): 55630368

約数和(自身を除く): 24442593

約数列:

[1, 3, 5, 15, 17, 25, 51, 61, 75, 85, 183, 255, 305, 401, 425, 915, 1037, 1203, 1275, 1525, 2005, 3111, 4575, 5185, 6015, 6817, 10025, 15555, 20451, 24461, 25925, 30075, 34085, 73383, 77775, 102255, 122305, 170425, 366915, 415837, 511275, 611525, 1247511, 1834575, 2079185, 6237555, 10395925, 31187775]

約数ペア:

[(1, 31187775), (3, 10395925), (5, 6237555), (15, 2079185), (17, 1834575), (25, 1247511), (51, 611525), (61, 511275), (75, 415837), (85, 366915), (183, 170425), (255, 122305), (305, 102255), (401, 77775), (425, 73383), (915, 34085), (1037, 30075), (1203, 25925), (1275, 24461), (1525, 20451), (2005, 15555), (3111, 10025), (4575, 6817), (5185, 6015)]