81869164

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{16231}}^1$

素因数の和:16345

約数の個数: 24

約数和(自身を含む): 155892128

約数和(自身を除く): 74022964

約数列:

[1, 2, 4, 13, 26, 52, 97, 194, 388, 1261, 2522, 5044, 16231, 32462, 64924, 211003, 422006, 844012, 1574407, 3148814, 6297628, 20467291, 40934582, 81869164]

約数ペア:

[(1, 81869164), (2, 40934582), (4, 20467291), (13, 6297628), (26, 3148814), (52, 1574407), (97, 844012), (194, 422006), (388, 211003), (1261, 64924), (2522, 32462), (5044, 16231)]