8413720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{199}}^1$

素因数の和:368

約数の個数: 64

約数和(自身を含む): 21888000

約数和(自身を除く): 13474280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 151, 199, 280, 302, 398, 604, 755, 796, 995, 1057, 1208, 1393, 1510, 1592, 1990, 2114, 2786, 3020, 3980, 4228, 5285, 5572, 6040, 6965, 7960, 8456, 10570, 11144, 13930, 21140, 27860, 30049, 42280, 55720, 60098, 120196, 150245, 210343, 240392, 300490, 420686, 600980, 841372, 1051715, 1201960, 1682744, 2103430, 4206860, 8413720]

約数ペア:

[(1, 8413720), (2, 4206860), (4, 2103430), (5, 1682744), (7, 1201960), (8, 1051715), (10, 841372), (14, 600980), (20, 420686), (28, 300490), (35, 240392), (40, 210343), (56, 150245), (70, 120196), (140, 60098), (151, 55720), (199, 42280), (280, 30049), (302, 27860), (398, 21140), (604, 13930), (755, 11144), (796, 10570), (995, 8456), (1057, 7960), (1208, 6965), (1393, 6040), (1510, 5572), (1592, 5285), (1990, 4228), (2114, 3980), (2786, 3020)]