20820164320

素因数分解:

$2^5\times 5^1\times {\mathrm{6653}}^1\times {\mathrm{19559}}^1$

素因数の和:26227

約数の個数: 48

約数和(自身を含む): 49197546720

約数和(自身を除く): 28377382400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 6653, 13306, 19559, 26612, 33265, 39118, 53224, 66530, 78236, 97795, 106448, 133060, 156472, 195590, 212896, 266120, 312944, 391180, 532240, 625888, 782360, 1064480, 1564720, 3129440, 130126027, 260252054, 520504108, 650630135, 1041008216, 1301260270, 2082016432, 2602520540, 4164032864, 5205041080, 10410082160, 20820164320]

約数ペア:

[(1, 20820164320), (2, 10410082160), (4, 5205041080), (5, 4164032864), (8, 2602520540), (10, 2082016432), (16, 1301260270), (20, 1041008216), (32, 650630135), (40, 520504108), (80, 260252054), (160, 130126027), (6653, 3129440), (13306, 1564720), (19559, 1064480), (26612, 782360), (33265, 625888), (39118, 532240), (53224, 391180), (66530, 312944), (78236, 266120), (97795, 212896), (106448, 195590), (133060, 156472)]