989873072

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{181}}^1\times {\mathrm{7949}}^1$

素因数の和:8181

約数の個数: 40

約数和(自身を含む): 1973571600

約数和(自身を除く): 983698528

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 181, 344, 362, 688, 724, 1448, 2896, 7783, 7949, 15566, 15898, 31132, 31796, 62264, 63592, 124528, 127184, 341807, 683614, 1367228, 1438769, 2734456, 2877538, 5468912, 5755076, 11510152, 23020304, 61867067, 123734134, 247468268, 494936536, 989873072]

約数ペア:

[(1, 989873072), (2, 494936536), (4, 247468268), (8, 123734134), (16, 61867067), (43, 23020304), (86, 11510152), (172, 5755076), (181, 5468912), (344, 2877538), (362, 2734456), (688, 1438769), (724, 1367228), (1448, 683614), (2896, 341807), (7783, 127184), (7949, 124528), (15566, 63592), (15898, 62264), (31132, 31796)]