68784765

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{2549}}^1$

素因数の和:2821

約数の個数: 32

約数和(自身を含む): 126316800

約数和(自身を除く): 57532035

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 257, 771, 1285, 1799, 2549, 3855, 5397, 7647, 8995, 12745, 17843, 26985, 38235, 53529, 89215, 267645, 655093, 1965279, 3275465, 4585651, 9826395, 13756953, 22928255, 68784765]

約数ペア:

[(1, 68784765), (3, 22928255), (5, 13756953), (7, 9826395), (15, 4585651), (21, 3275465), (35, 1965279), (105, 655093), (257, 267645), (771, 89215), (1285, 53529), (1799, 38235), (2549, 26985), (3855, 17843), (5397, 12745), (7647, 8995)]