51484520

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{31393}}^1$

素因数の和:31445

約数の個数: 32

約数和(自身を含む): 118669320

約数和(自身を除く): 67184800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 31393, 62786, 125572, 156965, 251144, 313930, 627860, 1255720, 1287113, 2574226, 5148452, 6435565, 10296904, 12871130, 25742260, 51484520]

約数ペア:

[(1, 51484520), (2, 25742260), (4, 12871130), (5, 10296904), (8, 6435565), (10, 5148452), (20, 2574226), (40, 1287113), (41, 1255720), (82, 627860), (164, 313930), (205, 251144), (328, 156965), (410, 125572), (820, 62786), (1640, 31393)]