20489300

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{15761}}^1$

素因数の和:15788

約数の個数: 36

約数和(自身を含む): 47884956

約数和(自身を除く): 27395656

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 15761, 31522, 63044, 78805, 157610, 204893, 315220, 394025, 409786, 788050, 819572, 1024465, 1576100, 2048930, 4097860, 5122325, 10244650, 20489300]

約数ペア:

[(1, 20489300), (2, 10244650), (4, 5122325), (5, 4097860), (10, 2048930), (13, 1576100), (20, 1024465), (25, 819572), (26, 788050), (50, 409786), (52, 394025), (65, 315220), (100, 204893), (130, 157610), (260, 78805), (325, 63044), (650, 31522), (1300, 15761)]