2021137025

素因数分解:

$5^2\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1\times {\mathrm{389}}^1$

素因数の和:614

約数の個数: 48

約数和(自身を含む): 2662798320

約数和(自身を除く): 641661295

約数列:

[1, 5, 25, 37, 41, 137, 185, 205, 389, 685, 925, 1025, 1517, 1945, 3425, 5069, 5617, 7585, 9725, 14393, 15949, 25345, 28085, 37925, 53293, 71965, 79745, 126725, 140425, 207829, 266465, 359825, 398725, 590113, 1039145, 1332325, 1971841, 2185013, 2950565, 5195725, 9859205, 10925065, 14752825, 49296025, 54625325, 80845481, 404227405, 2021137025]

約数ペア:

[(1, 2021137025), (5, 404227405), (25, 80845481), (37, 54625325), (41, 49296025), (137, 14752825), (185, 10925065), (205, 9859205), (389, 5195725), (685, 2950565), (925, 2185013), (1025, 1971841), (1517, 1332325), (1945, 1039145), (3425, 590113), (5069, 398725), (5617, 359825), (7585, 266465), (9725, 207829), (14393, 140425), (15949, 126725), (25345, 79745), (28085, 71965), (37925, 53293)]