21253000

素因数分解:

$2^3\times 5^3\times {\mathrm{53}}^1\times {\mathrm{401}}^1$

素因数の和:475

約数の個数: 64

約数和(自身を含む): 50796720

約数和(自身を除く): 29543720

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 53, 100, 106, 125, 200, 212, 250, 265, 401, 424, 500, 530, 802, 1000, 1060, 1325, 1604, 2005, 2120, 2650, 3208, 4010, 5300, 6625, 8020, 10025, 10600, 13250, 16040, 20050, 21253, 26500, 40100, 42506, 50125, 53000, 80200, 85012, 100250, 106265, 170024, 200500, 212530, 401000, 425060, 531325, 850120, 1062650, 2125300, 2656625, 4250600, 5313250, 10626500, 21253000]

約数ペア:

[(1, 21253000), (2, 10626500), (4, 5313250), (5, 4250600), (8, 2656625), (10, 2125300), (20, 1062650), (25, 850120), (40, 531325), (50, 425060), (53, 401000), (100, 212530), (106, 200500), (125, 170024), (200, 106265), (212, 100250), (250, 85012), (265, 80200), (401, 53000), (424, 50125), (500, 42506), (530, 40100), (802, 26500), (1000, 21253), (1060, 20050), (1325, 16040), (1604, 13250), (2005, 10600), (2120, 10025), (2650, 8020), (3208, 6625), (4010, 5300)]