20199128

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{7817}}^1$

素因数の和:7859

約数の個数: 32

約数和(自身を含む): 42217200

約数和(自身を除く): 22018072

約数列:

[1, 2, 4, 8, 17, 19, 34, 38, 68, 76, 136, 152, 323, 646, 1292, 2584, 7817, 15634, 31268, 62536, 132889, 148523, 265778, 297046, 531556, 594092, 1063112, 1188184, 2524891, 5049782, 10099564, 20199128]

約数ペア:

[(1, 20199128), (2, 10099564), (4, 5049782), (8, 2524891), (17, 1188184), (19, 1063112), (34, 594092), (38, 531556), (68, 297046), (76, 265778), (136, 148523), (152, 132889), (323, 62536), (646, 31268), (1292, 15634), (2584, 7817)]