1621340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{313}}^1$

素因数の和:366

約数の個数: 48

約数和(自身を含む): 4009152

約数和(自身を除く): 2387812

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 70, 74, 140, 148, 185, 259, 313, 370, 518, 626, 740, 1036, 1252, 1295, 1565, 2191, 2590, 3130, 4382, 5180, 6260, 8764, 10955, 11581, 21910, 23162, 43820, 46324, 57905, 81067, 115810, 162134, 231620, 324268, 405335, 810670, 1621340]

約数ペア:

[(1, 1621340), (2, 810670), (4, 405335), (5, 324268), (7, 231620), (10, 162134), (14, 115810), (20, 81067), (28, 57905), (35, 46324), (37, 43820), (70, 23162), (74, 21910), (140, 11581), (148, 10955), (185, 8764), (259, 6260), (313, 5180), (370, 4382), (518, 3130), (626, 2590), (740, 2191), (1036, 1565), (1252, 1295)]