20163853640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{449}}^1\times {\mathrm{160387}}^1$

素因数の和:160854

約数の個数: 64

約数和(自身を含む): 51965712000

約数和(自身を除く): 31801858360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 449, 898, 1796, 2245, 3143, 3592, 4490, 6286, 8980, 12572, 15715, 17960, 25144, 31430, 62860, 125720, 160387, 320774, 641548, 801935, 1122709, 1283096, 1603870, 2245418, 3207740, 4490836, 5613545, 6415480, 8981672, 11227090, 22454180, 44908360, 72013763, 144027526, 288055052, 360068815, 504096341, 576110104, 720137630, 1008192682, 1440275260, 2016385364, 2520481705, 2880550520, 4032770728, 5040963410, 10081926820, 20163853640]

約数ペア:

[(1, 20163853640), (2, 10081926820), (4, 5040963410), (5, 4032770728), (7, 2880550520), (8, 2520481705), (10, 2016385364), (14, 1440275260), (20, 1008192682), (28, 720137630), (35, 576110104), (40, 504096341), (56, 360068815), (70, 288055052), (140, 144027526), (280, 72013763), (449, 44908360), (898, 22454180), (1796, 11227090), (2245, 8981672), (3143, 6415480), (3592, 5613545), (4490, 4490836), (6286, 3207740), (8980, 2245418), (12572, 1603870), (15715, 1283096), (17960, 1122709), (25144, 801935), (31430, 641548), (62860, 320774), (125720, 160387)]