42990325

素因数分解:

$5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1$

素因数の和:286

約数の個数: 48

約数和(自身を含む): 64817280

約数和(自身を除く): 21826955

約数列:

[1, 5, 7, 25, 29, 35, 43, 145, 175, 197, 203, 215, 301, 725, 985, 1015, 1075, 1247, 1379, 1505, 4925, 5075, 5713, 6235, 6895, 7525, 8471, 8729, 28565, 31175, 34475, 39991, 42355, 43645, 59297, 142825, 199955, 211775, 218225, 245659, 296485, 999775, 1228295, 1482425, 1719613, 6141475, 8598065, 42990325]

約数ペア:

[(1, 42990325), (5, 8598065), (7, 6141475), (25, 1719613), (29, 1482425), (35, 1228295), (43, 999775), (145, 296485), (175, 245659), (197, 218225), (203, 211775), (215, 199955), (301, 142825), (725, 59297), (985, 43645), (1015, 42355), (1075, 39991), (1247, 34475), (1379, 31175), (1505, 28565), (4925, 8729), (5075, 8471), (5713, 7525), (6235, 6895)]