198679725

素因数分解:

$3^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{30449}}^1$

素因数の和:30494

約数の個数: 36

約数和(自身を含む): 368140500

約数和(自身を除く): 169460775

約数列:

[1, 3, 5, 9, 15, 25, 29, 45, 75, 87, 145, 225, 261, 435, 725, 1305, 2175, 6525, 30449, 91347, 152245, 274041, 456735, 761225, 883021, 1370205, 2283675, 2649063, 4415105, 6851025, 7947189, 13245315, 22075525, 39735945, 66226575, 198679725]

約数ペア:

[(1, 198679725), (3, 66226575), (5, 39735945), (9, 22075525), (15, 13245315), (25, 7947189), (29, 6851025), (45, 4415105), (75, 2649063), (87, 2283675), (145, 1370205), (225, 883021), (261, 761225), (435, 456735), (725, 274041), (1305, 152245), (2175, 91347), (6525, 30449)]