20199452

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{263}}^1$

素因数の和:498

約数の個数: 48

約数和(自身を含む): 43878912

約数和(自身を除く): 23679460

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 211, 263, 364, 422, 526, 844, 1052, 1477, 1841, 2743, 2954, 3419, 3682, 5486, 5908, 6838, 7364, 10972, 13676, 19201, 23933, 38402, 47866, 55493, 76804, 95732, 110986, 221972, 388451, 721409, 776902, 1442818, 1553804, 2885636, 5049863, 10099726, 20199452]

約数ペア:

[(1, 20199452), (2, 10099726), (4, 5049863), (7, 2885636), (13, 1553804), (14, 1442818), (26, 776902), (28, 721409), (52, 388451), (91, 221972), (182, 110986), (211, 95732), (263, 76804), (364, 55493), (422, 47866), (526, 38402), (844, 23933), (1052, 19201), (1477, 13676), (1841, 10972), (2743, 7364), (2954, 6838), (3419, 5908), (3682, 5486)]