20459264

素因数分解:

$2^8\times 7^3\times {\mathrm{233}}^1$

素因数の和:270

約数の個数: 72

約数和(自身を含む): 47829600

約数和(自身を除く): 27370336

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 128, 196, 224, 233, 256, 343, 392, 448, 466, 686, 784, 896, 932, 1372, 1568, 1631, 1792, 1864, 2744, 3136, 3262, 3728, 5488, 6272, 6524, 7456, 10976, 11417, 12544, 13048, 14912, 21952, 22834, 26096, 29824, 43904, 45668, 52192, 59648, 79919, 87808, 91336, 104384, 159838, 182672, 208768, 319676, 365344, 417536, 639352, 730688, 1278704, 1461376, 2557408, 2922752, 5114816, 10229632, 20459264]

約数ペア:

[(1, 20459264), (2, 10229632), (4, 5114816), (7, 2922752), (8, 2557408), (14, 1461376), (16, 1278704), (28, 730688), (32, 639352), (49, 417536), (56, 365344), (64, 319676), (98, 208768), (112, 182672), (128, 159838), (196, 104384), (224, 91336), (233, 87808), (256, 79919), (343, 59648), (392, 52192), (448, 45668), (466, 43904), (686, 29824), (784, 26096), (896, 22834), (932, 21952), (1372, 14912), (1568, 13048), (1631, 12544), (1792, 11417), (1864, 10976), (2744, 7456), (3136, 6524), (3262, 6272), (3728, 5488)]