81901290010

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{103672519}}^1$

素因数の和:103672605

約数の個数: 16

約数和(自身を含む): 149288428800

約数和(自身を除く): 67387138790

約数列:

[1, 2, 5, 10, 79, 158, 395, 790, 103672519, 207345038, 518362595, 1036725190, 8190129001, 16380258002, 40950645005, 81901290010]

約数ペア:

[(1, 81901290010), (2, 40950645005), (5, 16380258002), (10, 8190129001), (79, 1036725190), (158, 518362595), (395, 207345038), (790, 103672519)]