99992020

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{101}}^1\times {\mathrm{839}}^1$

素因数の和:1008

約数の個数: 48

約数和(自身を含む): 215913600

約数和(自身を除く): 115921580

約数列:

[1, 2, 4, 5, 10, 20, 59, 101, 118, 202, 236, 295, 404, 505, 590, 839, 1010, 1180, 1678, 2020, 3356, 4195, 5959, 8390, 11918, 16780, 23836, 29795, 49501, 59590, 84739, 99002, 119180, 169478, 198004, 247505, 338956, 423695, 495010, 847390, 990020, 1694780, 4999601, 9999202, 19998404, 24998005, 49996010, 99992020]

約数ペア:

[(1, 99992020), (2, 49996010), (4, 24998005), (5, 19998404), (10, 9999202), (20, 4999601), (59, 1694780), (101, 990020), (118, 847390), (202, 495010), (236, 423695), (295, 338956), (404, 247505), (505, 198004), (590, 169478), (839, 119180), (1010, 99002), (1180, 84739), (1678, 59590), (2020, 49501), (3356, 29795), (4195, 23836), (5959, 16780), (8390, 11918)]