28813540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{277}}^1\times {\mathrm{743}}^1$

素因数の和:1036

約数の個数: 48

約数和(自身を含む): 69495552

約数和(自身を除く): 40682012

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 277, 554, 743, 1108, 1385, 1486, 1939, 2770, 2972, 3715, 3878, 5201, 5540, 7430, 7756, 9695, 10402, 14860, 19390, 20804, 26005, 38780, 52010, 104020, 205811, 411622, 823244, 1029055, 1440677, 2058110, 2881354, 4116220, 5762708, 7203385, 14406770, 28813540]

約数ペア:

[(1, 28813540), (2, 14406770), (4, 7203385), (5, 5762708), (7, 4116220), (10, 2881354), (14, 2058110), (20, 1440677), (28, 1029055), (35, 823244), (70, 411622), (140, 205811), (277, 104020), (554, 52010), (743, 38780), (1108, 26005), (1385, 20804), (1486, 19390), (1939, 14860), (2770, 10402), (2972, 9695), (3715, 7756), (3878, 7430), (5201, 5540)]