71498680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{3779}}^1$

素因数の和:3844

約数の個数: 64

約数和(自身を含む): 179625600

約数和(自身を除く): 108126920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 43, 44, 55, 86, 88, 110, 172, 215, 220, 344, 430, 440, 473, 860, 946, 1720, 1892, 2365, 3779, 3784, 4730, 7558, 9460, 15116, 18895, 18920, 30232, 37790, 41569, 75580, 83138, 151160, 162497, 166276, 207845, 324994, 332552, 415690, 649988, 812485, 831380, 1299976, 1624970, 1662760, 1787467, 3249940, 3574934, 6499880, 7149868, 8937335, 14299736, 17874670, 35749340, 71498680]

約数ペア:

[(1, 71498680), (2, 35749340), (4, 17874670), (5, 14299736), (8, 8937335), (10, 7149868), (11, 6499880), (20, 3574934), (22, 3249940), (40, 1787467), (43, 1662760), (44, 1624970), (55, 1299976), (86, 831380), (88, 812485), (110, 649988), (172, 415690), (215, 332552), (220, 324994), (344, 207845), (430, 166276), (440, 162497), (473, 151160), (860, 83138), (946, 75580), (1720, 41569), (1892, 37790), (2365, 30232), (3779, 18920), (3784, 18895), (4730, 15116), (7558, 9460)]