320464963

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{2539}}^1$

素因数の和:2651

約数の個数: 32

約数和(自身を含む): 421030400

約数和(自身を除く): 100565437

約数列:

[1, 7, 13, 19, 73, 91, 133, 247, 511, 949, 1387, 1729, 2539, 6643, 9709, 17773, 18031, 33007, 48241, 126217, 185347, 231049, 337687, 627133, 1297429, 2409511, 3521593, 4389931, 16866577, 24651151, 45780709, 320464963]

約数ペア:

[(1, 320464963), (7, 45780709), (13, 24651151), (19, 16866577), (73, 4389931), (91, 3521593), (133, 2409511), (247, 1297429), (511, 627133), (949, 337687), (1387, 231049), (1729, 185347), (2539, 126217), (6643, 48241), (9709, 33007), (17773, 18031)]