399207985

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{196171}}^1$

素因数の和:196224

約数の個数: 16

約数和(自身を含む): 536726592

約数和(自身を除く): 137518607

約数列:

[1, 5, 11, 37, 55, 185, 407, 2035, 196171, 980855, 2157881, 7258327, 10789405, 36291635, 79841597, 399207985]

約数ペア:

[(1, 399207985), (5, 79841597), (11, 36291635), (37, 10789405), (55, 7258327), (185, 2157881), (407, 980855), (2035, 196171)]