19955142008

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{547}}^1\times {\mathrm{240007}}^1$

素因数の和:240579

約数の個数: 32

約数和(自身を含む): 39457315200

約数和(自身を除く): 19502173192

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 547, 1094, 2188, 4376, 10393, 20786, 41572, 83144, 240007, 480014, 960028, 1920056, 4560133, 9120266, 18240532, 36481064, 131283829, 262567658, 525135316, 1050270632, 2494392751, 4988785502, 9977571004, 19955142008]

約数ペア:

[(1, 19955142008), (2, 9977571004), (4, 4988785502), (8, 2494392751), (19, 1050270632), (38, 525135316), (76, 262567658), (152, 131283829), (547, 36481064), (1094, 18240532), (2188, 9120266), (4376, 4560133), (10393, 1920056), (20786, 960028), (41572, 480014), (83144, 240007)]