27720700

素因数分解:

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

素因数の和:419

約数の個数: 54

約数和(自身を含む): 69094536

約数和(自身を除く): 41373836

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 199, 350, 398, 700, 796, 995, 1393, 1990, 2786, 3980, 4975, 5572, 6965, 9950, 13930, 19900, 27860, 34825, 39601, 69650, 79202, 139300, 158404, 198005, 277207, 396010, 554414, 792020, 990025, 1108828, 1386035, 1980050, 2772070, 3960100, 5544140, 6930175, 13860350, 27720700]

約数ペア:

[(1, 27720700), (2, 13860350), (4, 6930175), (5, 5544140), (7, 3960100), (10, 2772070), (14, 1980050), (20, 1386035), (25, 1108828), (28, 990025), (35, 792020), (50, 554414), (70, 396010), (100, 277207), (140, 198005), (175, 158404), (199, 139300), (350, 79202), (398, 69650), (700, 39601), (796, 34825), (995, 27860), (1393, 19900), (1990, 13930), (2786, 9950), (3980, 6965), (4975, 5572)]