991744

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{149}}^1$

素因数の和:180

約数の個数: 40

約数和(自身を含む): 2148300

約数和(自身を除く): 1156556

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 149, 208, 256, 298, 416, 512, 596, 832, 1192, 1664, 1937, 2384, 3328, 3874, 4768, 6656, 7748, 9536, 15496, 19072, 30992, 38144, 61984, 76288, 123968, 247936, 495872, 991744]

約数ペア:

[(1, 991744), (2, 495872), (4, 247936), (8, 123968), (13, 76288), (16, 61984), (26, 38144), (32, 30992), (52, 19072), (64, 15496), (104, 9536), (128, 7748), (149, 6656), (208, 4768), (256, 3874), (298, 3328), (416, 2384), (512, 1937), (596, 1664), (832, 1192)]