51231500

素因数分解:

$2^2\times 5^3\times {\mathrm{79}}^1\times {\mathrm{1297}}^1$

素因数の和:1395

約数の個数: 48

約数和(自身を含む): 113393280

約数和(自身を除く): 62161780

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 79, 100, 125, 158, 250, 316, 395, 500, 790, 1297, 1580, 1975, 2594, 3950, 5188, 6485, 7900, 9875, 12970, 19750, 25940, 32425, 39500, 64850, 102463, 129700, 162125, 204926, 324250, 409852, 512315, 648500, 1024630, 2049260, 2561575, 5123150, 10246300, 12807875, 25615750, 51231500]

約数ペア:

[(1, 51231500), (2, 25615750), (4, 12807875), (5, 10246300), (10, 5123150), (20, 2561575), (25, 2049260), (50, 1024630), (79, 648500), (100, 512315), (125, 409852), (158, 324250), (250, 204926), (316, 162125), (395, 129700), (500, 102463), (790, 64850), (1297, 39500), (1580, 32425), (1975, 25940), (2594, 19750), (3950, 12970), (5188, 9875), (6485, 7900)]