208996975

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{191}}^1$

素因数の和:408

約数の個数: 48

約数和(自身を含む): 298266624

約数和(自身を除く): 89269649

約数列:

[1, 5, 11, 23, 25, 55, 115, 173, 191, 253, 275, 575, 865, 955, 1265, 1903, 2101, 3979, 4325, 4393, 4775, 6325, 9515, 10505, 19895, 21965, 33043, 43769, 47575, 48323, 52525, 99475, 109825, 165215, 218845, 241615, 363473, 759989, 826075, 1094225, 1208075, 1817365, 3799945, 8359879, 9086825, 18999725, 41799395, 208996975]

約数ペア:

[(1, 208996975), (5, 41799395), (11, 18999725), (23, 9086825), (25, 8359879), (55, 3799945), (115, 1817365), (173, 1208075), (191, 1094225), (253, 826075), (275, 759989), (575, 363473), (865, 241615), (955, 218845), (1265, 165215), (1903, 109825), (2101, 99475), (3979, 52525), (4325, 48323), (4393, 47575), (4775, 43769), (6325, 33043), (9515, 21965), (10505, 19895)]