4397260

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{641}}^1$

素因数の和:671

約数の個数: 48

約数和(自身を含む): 10785600

約数和(自身を除く): 6388340

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 641, 686, 980, 1282, 1372, 1715, 2564, 3205, 3430, 4487, 6410, 6860, 8974, 12820, 17948, 22435, 31409, 44870, 62818, 89740, 125636, 157045, 219863, 314090, 439726, 628180, 879452, 1099315, 2198630, 4397260]

約数ペア:

[(1, 4397260), (2, 2198630), (4, 1099315), (5, 879452), (7, 628180), (10, 439726), (14, 314090), (20, 219863), (28, 157045), (35, 125636), (49, 89740), (70, 62818), (98, 44870), (140, 31409), (196, 22435), (245, 17948), (343, 12820), (490, 8974), (641, 6860), (686, 6410), (980, 4487), (1282, 3430), (1372, 3205), (1715, 2564)]