98989975

素因数分解:

$5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{257}}^1$

素因数の和:376

約数の個数: 48

約数和(自身を含む): 147419136

約数和(自身を除く): 48429161

約数列:

[1, 5, 7, 25, 31, 35, 71, 155, 175, 217, 257, 355, 497, 775, 1085, 1285, 1775, 1799, 2201, 2485, 5425, 6425, 7967, 8995, 11005, 12425, 15407, 18247, 39835, 44975, 55025, 55769, 77035, 91235, 127729, 199175, 278845, 385175, 456175, 565657, 638645, 1394225, 2828285, 3193225, 3959599, 14141425, 19797995, 98989975]

約数ペア:

[(1, 98989975), (5, 19797995), (7, 14141425), (25, 3959599), (31, 3193225), (35, 2828285), (71, 1394225), (155, 638645), (175, 565657), (217, 456175), (257, 385175), (355, 278845), (497, 199175), (775, 127729), (1085, 91235), (1285, 77035), (1775, 55769), (1799, 55025), (2201, 44975), (2485, 39835), (5425, 18247), (6425, 15407), (7967, 12425), (8995, 11005)]