208016978

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{431}}^1\times {\mathrm{977}}^1$

素因数の和:1442

約数の個数: 32

約数和(自身を含む): 354896640

約数和(自身を除く): 146879662

約数列:

[1, 2, 13, 19, 26, 38, 247, 431, 494, 862, 977, 1954, 5603, 8189, 11206, 12701, 16378, 18563, 25402, 37126, 106457, 212914, 241319, 421087, 482638, 842174, 5474131, 8000653, 10948262, 16001306, 104008489, 208016978]

約数ペア:

[(1, 208016978), (2, 104008489), (13, 16001306), (19, 10948262), (26, 8000653), (38, 5474131), (247, 842174), (431, 482638), (494, 421087), (862, 241319), (977, 212914), (1954, 106457), (5603, 37126), (8189, 25402), (11206, 18563), (12701, 16378)]