1280454916

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1296007}}^1$

素因数の和:1296043

約数の個数: 24

約数和(自身を含む): 2540175680

約数和(自身を除く): 1259720764

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988, 1296007, 2592014, 5184028, 16848091, 24624133, 33696182, 49248266, 67392364, 98496532, 320113729, 640227458, 1280454916]

約数ペア:

[(1, 1280454916), (2, 640227458), (4, 320113729), (13, 98496532), (19, 67392364), (26, 49248266), (38, 33696182), (52, 24624133), (76, 16848091), (247, 5184028), (494, 2592014), (988, 1296007)]