645143974

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{738151}}^1$

素因数の和:738195

約数の個数: 16

約数和(自身を含む): 1062938880

約数和(自身を除く): 417794906

約数列:

[1, 2, 19, 23, 38, 46, 437, 874, 738151, 1476302, 14024869, 16977473, 28049738, 33954946, 322571987, 645143974]

約数ペア:

[(1, 645143974), (2, 322571987), (19, 33954946), (23, 28049738), (38, 16977473), (46, 14024869), (437, 1476302), (874, 738151)]