318125139440

素因数分解:

$2^4\times 5^1\times {\mathrm{3976564243}}^1$

素因数の和:3976564256

約数の個数: 20

約数和(自身を含む): 739640949384

約数和(自身を除く): 421515809944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3976564243, 7953128486, 15906256972, 19882821215, 31812513944, 39765642430, 63625027888, 79531284860, 159062569720, 318125139440]

約数ペア:

[(1, 318125139440), (2, 159062569720), (4, 79531284860), (5, 63625027888), (8, 39765642430), (10, 31812513944), (16, 19882821215), (20, 15906256972), (40, 7953128486), (80, 3976564243)]