72349840

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{8297}}^1$

素因数の和:8419

約数の個数: 40

約数和(自身を含む): 169777080

約数和(自身を除く): 97427240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 4360, 8297, 8720, 16594, 33188, 41485, 66376, 82970, 132752, 165940, 331880, 663760, 904373, 1808746, 3617492, 4521865, 7234984, 9043730, 14469968, 18087460, 36174920, 72349840]

約数ペア:

[(1, 72349840), (2, 36174920), (4, 18087460), (5, 14469968), (8, 9043730), (10, 7234984), (16, 4521865), (20, 3617492), (40, 1808746), (80, 904373), (109, 663760), (218, 331880), (436, 165940), (545, 132752), (872, 82970), (1090, 66376), (1744, 41485), (2180, 33188), (4360, 16594), (8297, 8720)]