20008017488

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{65815847}}^1$

素因数の和:65815874

約数の個数: 20

約数和(自身を含む): 40805825760

約数和(自身を除く): 20797808272

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 65815847, 131631694, 263263388, 526526776, 1053053552, 1250501093, 2501002186, 5002004372, 10004008744, 20008017488]

約数ペア:

[(1, 20008017488), (2, 10004008744), (4, 5002004372), (8, 2501002186), (16, 1250501093), (19, 1053053552), (38, 526526776), (76, 263263388), (152, 131631694), (304, 65815847)]