142739440

素因数分解:

$2^4\times 5^1\times {\mathrm{1784243}}^1$

素因数の和:1784256

約数の個数: 20

約数和(自身を含む): 331869384

約数和(自身を除く): 189129944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1784243, 3568486, 7136972, 8921215, 14273944, 17842430, 28547888, 35684860, 71369720, 142739440]

約数ペア:

[(1, 142739440), (2, 71369720), (4, 35684860), (5, 28547888), (8, 17842430), (10, 14273944), (16, 8921215), (20, 7136972), (40, 3568486), (80, 1784243)]