1281488

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1$

素因数の和:183

約数の個数: 40

約数和(自身を含む): 2744616

約数和(自身を除く): 1463128

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 61, 101, 104, 122, 202, 208, 244, 404, 488, 793, 808, 976, 1313, 1586, 1616, 2626, 3172, 5252, 6161, 6344, 10504, 12322, 12688, 21008, 24644, 49288, 80093, 98576, 160186, 320372, 640744, 1281488]

約数ペア:

[(1, 1281488), (2, 640744), (4, 320372), (8, 160186), (13, 98576), (16, 80093), (26, 49288), (52, 24644), (61, 21008), (101, 12688), (104, 12322), (122, 10504), (202, 6344), (208, 6161), (244, 5252), (404, 3172), (488, 2626), (793, 1616), (808, 1586), (976, 1313)]