638978056

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{38567}}^1$

素因数の和:38701

約数の個数: 32

約数和(自身を含む): 1272744000

約数和(自身を除く): 633765944

約数列:

[1, 2, 4, 8, 19, 38, 76, 109, 152, 218, 436, 872, 2071, 4142, 8284, 16568, 38567, 77134, 154268, 308536, 732773, 1465546, 2931092, 4203803, 5862184, 8407606, 16815212, 33630424, 79872257, 159744514, 319489028, 638978056]

約数ペア:

[(1, 638978056), (2, 319489028), (4, 159744514), (8, 79872257), (19, 33630424), (38, 16815212), (76, 8407606), (109, 5862184), (152, 4203803), (218, 2931092), (436, 1465546), (872, 732773), (2071, 308536), (4142, 154268), (8284, 77134), (16568, 38567)]