189983840

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{69847}}^1$

素因数の和:69879

約数の個数: 48

約数和(自身を含む): 475245792

約数和(自身を除く): 285261952

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 160, 170, 272, 340, 544, 680, 1360, 2720, 69847, 139694, 279388, 349235, 558776, 698470, 1117552, 1187399, 1396940, 2235104, 2374798, 2793880, 4749596, 5587760, 5936995, 9499192, 11175520, 11873990, 18998384, 23747980, 37996768, 47495960, 94991920, 189983840]

約数ペア:

[(1, 189983840), (2, 94991920), (4, 47495960), (5, 37996768), (8, 23747980), (10, 18998384), (16, 11873990), (17, 11175520), (20, 9499192), (32, 5936995), (34, 5587760), (40, 4749596), (68, 2793880), (80, 2374798), (85, 2235104), (136, 1396940), (160, 1187399), (170, 1117552), (272, 698470), (340, 558776), (544, 349235), (680, 279388), (1360, 139694), (2720, 69847)]