81782764

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{21961}}^1$

素因数の和:21998

約数の個数: 36

約数和(自身を含む): 175256760

約数和(自身を除く): 93473996

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 49, 76, 98, 133, 196, 266, 532, 931, 1862, 3724, 21961, 43922, 87844, 153727, 307454, 417259, 614908, 834518, 1076089, 1669036, 2152178, 2920813, 4304356, 5841626, 11683252, 20445691, 40891382, 81782764]

約数ペア:

[(1, 81782764), (2, 40891382), (4, 20445691), (7, 11683252), (14, 5841626), (19, 4304356), (28, 2920813), (38, 2152178), (49, 1669036), (76, 1076089), (98, 834518), (133, 614908), (196, 417259), (266, 307454), (532, 153727), (931, 87844), (1862, 43922), (3724, 21961)]