778842815

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1\times {\mathrm{131}}^1\times {\mathrm{193}}^1$

素因数の和:491

約数の個数: 32

約数和(自身を含む): 971669952

約数和(自身を除く): 192827137

約数列:

[1, 5, 61, 101, 131, 193, 305, 505, 655, 965, 6161, 7991, 11773, 13231, 19493, 25283, 30805, 39955, 58865, 66155, 97465, 126415, 807091, 1189073, 1542263, 2553583, 4035455, 5945365, 7711315, 12767915, 155768563, 778842815]

約数ペア:

[(1, 778842815), (5, 155768563), (61, 12767915), (101, 7711315), (131, 5945365), (193, 4035455), (305, 2553583), (505, 1542263), (655, 1189073), (965, 807091), (6161, 126415), (7991, 97465), (11773, 66155), (13231, 58865), (19493, 39955), (25283, 30805)]