19998656

素因数分解:

$2^6\times {\mathrm{89}}^1\times {\mathrm{3511}}^1$

素因数の和:3612

約数の個数: 28

約数和(自身を含む): 40142160

約数和(自身を除く): 20143504

約数列:

[1, 2, 4, 8, 16, 32, 64, 89, 178, 356, 712, 1424, 2848, 3511, 5696, 7022, 14044, 28088, 56176, 112352, 224704, 312479, 624958, 1249916, 2499832, 4999664, 9999328, 19998656]

約数ペア:

[(1, 19998656), (2, 9999328), (4, 4999664), (8, 2499832), (16, 1249916), (32, 624958), (64, 312479), (89, 224704), (178, 112352), (356, 56176), (712, 28088), (1424, 14044), (2848, 7022), (3511, 5696)]