20892928

素因数分解:

$2^8\times 7^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1$

素因数の和:243

約数の個数: 72

約数和(自身を含む): 48565440

約数和(自身を除く): 27672512

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 89, 112, 128, 131, 178, 224, 256, 262, 356, 448, 524, 623, 712, 896, 917, 1048, 1246, 1424, 1792, 1834, 2096, 2492, 2848, 3668, 4192, 4984, 5696, 7336, 8384, 9968, 11392, 11659, 14672, 16768, 19936, 22784, 23318, 29344, 33536, 39872, 46636, 58688, 79744, 81613, 93272, 117376, 159488, 163226, 186544, 234752, 326452, 373088, 652904, 746176, 1305808, 1492352, 2611616, 2984704, 5223232, 10446464, 20892928]

約数ペア:

[(1, 20892928), (2, 10446464), (4, 5223232), (7, 2984704), (8, 2611616), (14, 1492352), (16, 1305808), (28, 746176), (32, 652904), (56, 373088), (64, 326452), (89, 234752), (112, 186544), (128, 163226), (131, 159488), (178, 117376), (224, 93272), (256, 81613), (262, 79744), (356, 58688), (448, 46636), (524, 39872), (623, 33536), (712, 29344), (896, 23318), (917, 22784), (1048, 19936), (1246, 16768), (1424, 14672), (1792, 11659), (1834, 11392), (2096, 9968), (2492, 8384), (2848, 7336), (3668, 5696), (4192, 4984)]