51503600

素因数分解:

$2^4\times 5^2\times {\mathrm{331}}^1\times {\mathrm{389}}^1$

素因数の和:738

約数の個数: 60

約数和(自身を含む): 124430280

約数和(自身を除く): 72926680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 331, 389, 400, 662, 778, 1324, 1556, 1655, 1945, 2648, 3112, 3310, 3890, 5296, 6224, 6620, 7780, 8275, 9725, 13240, 15560, 16550, 19450, 26480, 31120, 33100, 38900, 66200, 77800, 128759, 132400, 155600, 257518, 515036, 643795, 1030072, 1287590, 2060144, 2575180, 3218975, 5150360, 6437950, 10300720, 12875900, 25751800, 51503600]

約数ペア:

[(1, 51503600), (2, 25751800), (4, 12875900), (5, 10300720), (8, 6437950), (10, 5150360), (16, 3218975), (20, 2575180), (25, 2060144), (40, 1287590), (50, 1030072), (80, 643795), (100, 515036), (200, 257518), (331, 155600), (389, 132400), (400, 128759), (662, 77800), (778, 66200), (1324, 38900), (1556, 33100), (1655, 31120), (1945, 26480), (2648, 19450), (3112, 16550), (3310, 15560), (3890, 13240), (5296, 9725), (6224, 8275), (6620, 7780)]