40990775

素因数分解:

$5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{197}}^1$

素因数の和:284

約数の個数: 48

約数和(自身を含む): 61871040

約数和(自身を除く): 20880265

約数列:

[1, 5, 7, 25, 29, 35, 41, 145, 175, 197, 203, 205, 287, 725, 985, 1015, 1025, 1189, 1379, 1435, 4925, 5075, 5713, 5945, 6895, 7175, 8077, 8323, 28565, 29725, 34475, 39991, 40385, 41615, 56539, 142825, 199955, 201925, 208075, 234233, 282695, 999775, 1171165, 1413475, 1639631, 5855825, 8198155, 40990775]

約数ペア:

[(1, 40990775), (5, 8198155), (7, 5855825), (25, 1639631), (29, 1413475), (35, 1171165), (41, 999775), (145, 282695), (175, 234233), (197, 208075), (203, 201925), (205, 199955), (287, 142825), (725, 56539), (985, 41615), (1015, 40385), (1025, 39991), (1189, 34475), (1379, 29725), (1435, 28565), (4925, 8323), (5075, 8077), (5713, 7175), (5945, 6895)]