20381656

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{179}}^1\times {\mathrm{331}}^1$

素因数の和:559

約数の個数: 32

約数和(自身を含む): 39441600

約数和(自身を除く): 19059944

約数列:

[1, 2, 4, 8, 43, 86, 172, 179, 331, 344, 358, 662, 716, 1324, 1432, 2648, 7697, 14233, 15394, 28466, 30788, 56932, 59249, 61576, 113864, 118498, 236996, 473992, 2547707, 5095414, 10190828, 20381656]

約数ペア:

[(1, 20381656), (2, 10190828), (4, 5095414), (8, 2547707), (43, 473992), (86, 236996), (172, 118498), (179, 113864), (331, 61576), (344, 59249), (358, 56932), (662, 30788), (716, 28466), (1324, 15394), (1432, 14233), (2648, 7697)]