20826155

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{631}}^1$

素因数の和:707

約数の個数: 32

約数和(自身を含む): 30578688

約数和(自身を除く): 9752533

約数列:

[1, 5, 7, 23, 35, 41, 115, 161, 205, 287, 631, 805, 943, 1435, 3155, 4417, 4715, 6601, 14513, 22085, 25871, 33005, 72565, 101591, 129355, 181097, 507955, 595033, 905485, 2975165, 4165231, 20826155]

約数ペア:

[(1, 20826155), (5, 4165231), (7, 2975165), (23, 905485), (35, 595033), (41, 507955), (115, 181097), (161, 129355), (205, 101591), (287, 72565), (631, 33005), (805, 25871), (943, 22085), (1435, 14513), (3155, 6601), (4417, 4715)]