71803880

素因数分解:

$2^3\times 5^1\times {\mathrm{653}}^1\times {\mathrm{2749}}^1$

素因数の和:3413

約数の個数: 32

約数和(自身を含む): 161865000

約数和(自身を除く): 90061120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 653, 1306, 2612, 2749, 3265, 5224, 5498, 6530, 10996, 13060, 13745, 21992, 26120, 27490, 54980, 109960, 1795097, 3590194, 7180388, 8975485, 14360776, 17950970, 35901940, 71803880]

約数ペア:

[(1, 71803880), (2, 35901940), (4, 17950970), (5, 14360776), (8, 8975485), (10, 7180388), (20, 3590194), (40, 1795097), (653, 109960), (1306, 54980), (2612, 27490), (2749, 26120), (3265, 21992), (5224, 13745), (5498, 13060), (6530, 10996)]