20138087775

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{293}}^1\times {\mathrm{449}}^1$

素因数の和:925

約数の個数: 96

約数和(自身を含む): 36288302400

約数和(自身を除く): 16150214625

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 157, 195, 293, 325, 449, 471, 785, 879, 975, 1347, 1465, 2041, 2245, 2355, 3809, 3925, 4395, 5837, 6123, 6735, 7325, 10205, 11225, 11427, 11775, 17511, 19045, 21975, 29185, 30615, 33675, 46001, 51025, 57135, 70493, 87555, 95225, 131557, 138003, 145925, 153075, 211479, 230005, 285675, 352465, 394671, 437775, 598013, 657785, 690015, 916409, 1057395, 1150025, 1710241, 1762325, 1794039, 1973355, 2749227, 2990065, 3288925, 3450075, 4582045, 5130723, 5286975, 8551205, 8970195, 9866775, 13746135, 14950325, 20654449, 22910225, 25653615, 42756025, 44850975, 61963347, 68730675, 103272245, 128268075, 268507837, 309816735, 516361225, 805523511, 1342539185, 1549083675, 4027617555, 6712695925, 20138087775]

約数ペア:

[(1, 20138087775), (3, 6712695925), (5, 4027617555), (13, 1549083675), (15, 1342539185), (25, 805523511), (39, 516361225), (65, 309816735), (75, 268507837), (157, 128268075), (195, 103272245), (293, 68730675), (325, 61963347), (449, 44850975), (471, 42756025), (785, 25653615), (879, 22910225), (975, 20654449), (1347, 14950325), (1465, 13746135), (2041, 9866775), (2245, 8970195), (2355, 8551205), (3809, 5286975), (3925, 5130723), (4395, 4582045), (5837, 3450075), (6123, 3288925), (6735, 2990065), (7325, 2749227), (10205, 1973355), (11225, 1794039), (11427, 1762325), (11775, 1710241), (17511, 1150025), (19045, 1057395), (21975, 916409), (29185, 690015), (30615, 657785), (33675, 598013), (46001, 437775), (51025, 394671), (57135, 352465), (70493, 285675), (87555, 230005), (95225, 211479), (131557, 153075), (138003, 145925)]