81768752

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{281}}^1\times {\mathrm{1399}}^1$

素因数の和:1701

約数の個数: 40

約数和(自身を含む): 171343200

約数和(自身を除く): 89574448

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 281, 562, 1124, 1399, 2248, 2798, 3653, 4496, 5596, 7306, 11192, 14612, 18187, 22384, 29224, 36374, 58448, 72748, 145496, 290992, 393119, 786238, 1572476, 3144952, 5110547, 6289904, 10221094, 20442188, 40884376, 81768752]

約数ペア:

[(1, 81768752), (2, 40884376), (4, 20442188), (8, 10221094), (13, 6289904), (16, 5110547), (26, 3144952), (52, 1572476), (104, 786238), (208, 393119), (281, 290992), (562, 145496), (1124, 72748), (1399, 58448), (2248, 36374), (2798, 29224), (3653, 22384), (4496, 18187), (5596, 14612), (7306, 11192)]