131248460

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{199}}^1\times {\mathrm{673}}^1$

素因数の和:895

約数の個数: 72

約数和(自身を含む): 322711200

約数和(自身を除く): 191462740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 199, 245, 398, 490, 673, 796, 980, 995, 1346, 1393, 1990, 2692, 2786, 3365, 3980, 4711, 5572, 6730, 6965, 9422, 9751, 13460, 13930, 18844, 19502, 23555, 27860, 32977, 39004, 47110, 48755, 65954, 94220, 97510, 131908, 133927, 164885, 195020, 267854, 329770, 535708, 659540, 669635, 937489, 1339270, 1874978, 2678540, 3749956, 4687445, 6562423, 9374890, 13124846, 18749780, 26249692, 32812115, 65624230, 131248460]

約数ペア:

[(1, 131248460), (2, 65624230), (4, 32812115), (5, 26249692), (7, 18749780), (10, 13124846), (14, 9374890), (20, 6562423), (28, 4687445), (35, 3749956), (49, 2678540), (70, 1874978), (98, 1339270), (140, 937489), (196, 669635), (199, 659540), (245, 535708), (398, 329770), (490, 267854), (673, 195020), (796, 164885), (980, 133927), (995, 131908), (1346, 97510), (1393, 94220), (1990, 65954), (2692, 48755), (2786, 47110), (3365, 39004), (3980, 32977), (4711, 27860), (5572, 23555), (6730, 19502), (6965, 18844), (9422, 13930), (9751, 13460)]