207921725

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{463}}^1$

素因数の和:578

約数の個数: 48

約数和(自身を含む): 298266624

約数和(自身を除く): 90344899

約数列:

[1, 5, 11, 23, 25, 55, 71, 115, 253, 275, 355, 463, 575, 781, 1265, 1633, 1775, 2315, 3905, 5093, 6325, 8165, 10649, 11575, 17963, 19525, 25465, 32873, 40825, 53245, 89815, 117139, 127325, 164365, 266225, 361603, 449075, 585695, 756079, 821825, 1808015, 2928475, 3780395, 8316869, 9040075, 18901975, 41584345, 207921725]

約数ペア:

[(1, 207921725), (5, 41584345), (11, 18901975), (23, 9040075), (25, 8316869), (55, 3780395), (71, 2928475), (115, 1808015), (253, 821825), (275, 756079), (355, 585695), (463, 449075), (575, 361603), (781, 266225), (1265, 164365), (1633, 127325), (1775, 117139), (2315, 89815), (3905, 53245), (5093, 40825), (6325, 32873), (8165, 25465), (10649, 19525), (11575, 17963)]