19985872

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{2267}}^1$

素因数の和:2323

約数の個数: 40

約数和(自身を含む): 42184800

約数和(自身を除く): 22198928

約数列:

[1, 2, 4, 8, 16, 19, 29, 38, 58, 76, 116, 152, 232, 304, 464, 551, 1102, 2204, 2267, 4408, 4534, 8816, 9068, 18136, 36272, 43073, 65743, 86146, 131486, 172292, 262972, 344584, 525944, 689168, 1051888, 1249117, 2498234, 4996468, 9992936, 19985872]

約数ペア:

[(1, 19985872), (2, 9992936), (4, 4996468), (8, 2498234), (16, 1249117), (19, 1051888), (29, 689168), (38, 525944), (58, 344584), (76, 262972), (116, 172292), (152, 131486), (232, 86146), (304, 65743), (464, 43073), (551, 36272), (1102, 18136), (2204, 9068), (2267, 8816), (4408, 4534)]