71661275

素因数分解:

$5^2\times 7^3\times {\mathrm{61}}^1\times {\mathrm{137}}^1$

素因数の和:229

約数の個数: 48

約数和(自身を含む): 106094400

約数和(自身を除く): 34433125

約数列:

[1, 5, 7, 25, 35, 49, 61, 137, 175, 245, 305, 343, 427, 685, 959, 1225, 1525, 1715, 2135, 2989, 3425, 4795, 6713, 8357, 8575, 10675, 14945, 20923, 23975, 33565, 41785, 46991, 58499, 74725, 104615, 167825, 208925, 234955, 292495, 409493, 523075, 1174775, 1462475, 2047465, 2866451, 10237325, 14332255, 71661275]

約数ペア:

[(1, 71661275), (5, 14332255), (7, 10237325), (25, 2866451), (35, 2047465), (49, 1462475), (61, 1174775), (137, 523075), (175, 409493), (245, 292495), (305, 234955), (343, 208925), (427, 167825), (685, 104615), (959, 74725), (1225, 58499), (1525, 46991), (1715, 41785), (2135, 33565), (2989, 23975), (3425, 20923), (4795, 14945), (6713, 10675), (8357, 8575)]