20016776

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{977}}^1$

素因数の和:1193

約数の個数: 32

約数和(自身を含む): 40665240

約数和(自身を除く): 20648464

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 197, 394, 788, 977, 1576, 1954, 2561, 3908, 5122, 7816, 10244, 12701, 20488, 25402, 50804, 101608, 192469, 384938, 769876, 1539752, 2502097, 5004194, 10008388, 20016776]

約数ペア:

[(1, 20016776), (2, 10008388), (4, 5004194), (8, 2502097), (13, 1539752), (26, 769876), (52, 384938), (104, 192469), (197, 101608), (394, 50804), (788, 25402), (977, 20488), (1576, 12701), (1954, 10244), (2561, 7816), (3908, 5122)]