25444720

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{6491}}^1$

素因数の和:6518

約数の個数: 60

約数和(自身を含む): 68828184

約数和(自身を除く): 43383464

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 6491, 12982, 25964, 32455, 45437, 51928, 64910, 90874, 103856, 129820, 181748, 227185, 259640, 318059, 363496, 454370, 519280, 636118, 726992, 908740, 1272236, 1590295, 1817480, 2544472, 3180590, 3634960, 5088944, 6361180, 12722360, 25444720]

約数ペア:

[(1, 25444720), (2, 12722360), (4, 6361180), (5, 5088944), (7, 3634960), (8, 3180590), (10, 2544472), (14, 1817480), (16, 1590295), (20, 1272236), (28, 908740), (35, 726992), (40, 636118), (49, 519280), (56, 454370), (70, 363496), (80, 318059), (98, 259640), (112, 227185), (140, 181748), (196, 129820), (245, 103856), (280, 90874), (392, 64910), (490, 51928), (560, 45437), (784, 32455), (980, 25964), (1960, 12982), (3920, 6491)]